Supplier Rankings

Operates at a global scale with a high degree of transparency, and earns praise for its customer support and logistics.

Carries a 4.9/5 Trustpilot score across 99 reviews, with buyers citing the COAs, purity, quick worldwide delivery (under a week), and responsive support. Each batch ships with a COA, a QR code, and accessible HPLC/MS reports. The technical track record and efficient shipping both check out.

Transparency here is strong: full per-batch COAs are posted on the site, with independent HPLC and MS testing run by a certified lab, and the FAQ confirms a COA ships with every product. The Trustpilot score sits at 4.4/5 with detailed feedback on quality and service. The site is built for researchers, with an in-vitro-use policy, a clear COA section, and an open paper trail.

COA PDFs are posted right on the product pages under "Certificate of Analysis," stated purity tops 99%, the company cites cGMP infrastructure, and forum feedback skews positive.

Genuine per-batch COA PDFs are posted on the site under Test Reports, showing purity of roughly 98-99% backed by HPLC and MS analysis.

Per-batch COAs, stated purity above 99%, quick shipping, and responsive support add up to a strong technical showing.

Research-oriented vendor reporting 99%+ purity with dependable COAs.

Solid COAs, a large volume of reviews, and helpful support.

COAs are easy to find, shipping is fast, the FAQ covers the technical side, and the vendor's reputation is on the rise.

Each vial carries a QR code that links straight to its batch COA, per the vendor's own statement, and buyers report being able to verify purity and confirm the tests are valid. The Trustpilot score is 4.8/5 across 1,165 reviews, with praise for quality, fast delivery, and support, and one Reddit user wrote: "Love them. I buy their CJC and Ipamorelin … haven't felt this good in a long time."

Per-batch COAs are provided (for example batch BLL2502210001 at 99%+ purity) with LC-MS/MS testing, and the technical reputation is backed by a number of favorable assessments.

Runs a clear per-batch COA policy using third-party labs (HPLC-MS/NMR) and supports independent verification. COAs are publicly viewable, such as the TB-500 PDF.

A global leader in peptide synthesis, holding ISO 9001 certification, guaranteeing purity of at least 98%, and providing COA tracking with per-batch HPLC and MS. It runs the PepHTS platform for rapid synthesis and offers custom work plus RUO/cGMP kits.

Every batch comes with a PDF/QR COA, stated purity is at least 99%, and the vendor cites ISO/GMP standards, fast US shipping, and 24/7 support. Its reputation is decent (Trustpilot 4.0/5 across 20 reviews), and forum users have recommended it over rivals, e.g. "I'd go with Ignite Peptides instead" versus Amino USA.

There is a dedicated COAs page listing batches and dates (e.g. BPC-157 06/2025, Tirzepatide 04/2025), and the vendor states that every batch undergoes third-party HPLC testing with validated protocols, detailing purity, concentration, and identity. The site is professional and technical, with same-day shipping, temperature control, and lab support, and the company operates under GMP standards with support and a return policy. Reddit feedback is positive ("faster than expected"), and the blog offers useful material on purity and research uses.

Genuine COA showing 99.87% purity, with a "Research1Peptides" vial and a dependable, well-presented setup.

A recent COA (within three months) shows 99.65% purity by HPLC/MS, and NovoPro states 99.6% purity while supplying reports with storage data, formula, and structure. The company appears in scientific citations (Cell Metabolism, NEJM) and is recognized for protocol replication, with forum discussions on Reddit confirming the formulation can be reproduced. These are serious RUO products with robust documentation and a GLP-3/Retatrutide focus.

Per-batch COAs sit in the "Lab Results" section as PDFs and QR codes. The Trustpilot score is 4.7 across 26 reviews praising service, packaging, and quick delivery, and users report hands-on support and solid product quality. Reddit feedback is favorable ("Everything came sealed and shipped fast"), and the site offers 24/7 chat support, clear disclaimers, and straightforward marketing around independent testing.

This USP/GMP-compliant vendor runs rigorous testing for identity, purity (at least 99%), sterility, and endotoxins through an ISO-accredited lab (Vanguard Labs), with COAs on product pages and detailed per-batch PDFs such as GLP-1-R. The reputation is strong (4.6/5 on Trustpilot across 18 reviews), and it offers same-day shipping, a 30-day return policy, a technical FAQ, educational content, and institutional discounts, with clear RUO labeling and a not-for-human-use stance. The site is newly launched but already established in technical forums and on social media, and carries a respectable Scamadviser score of 67/100.

A strong fit for institutional research, but less practical for individual online ordering.

States purity of at least 99% with a COA on every batch, and its "Certificates" page lets you download COAs for various compounds (Sema, Tirz, Cagrilintide, and more). Products are RUO, with fast shipping, professional support, and a return policy.

The site claims "independent third-party testing in the US," and a recent TikTok backs up the listed COAs. Transparency and the technical reputation both look solid.

Per-batch COAs are presented as visual certificates in a dedicated section. Founded in 2018, the vendor has a steady reputation and a stated focus on purity.

Swiss-grade quality with discreet packaging and shipping to the US.

COAs are run through MZ Biolabs, support is good, shipping is fast, and the vendor rates well on the technical side.

Held to a high standard, with guaranteed shipping to the US and professional packaging.

Top-tier technical transparency, providing COAs plus raw data and backed by strong support.

Genuine per-batch COAs and a 4.9/5 Trustpilot score across 343 recent reviews. The domain is new, but the early reputation is very solid.

Per-batch COAs are available, the vendor cites GMP, products are endotoxin-tested, and shipping is fast.

The domain dates to 2019, runs on a robust host (Fastly), and earns a good Scamadviser trust score, with favorable mentions in beauty/lifestyle media as a trusted peptide source. That said, there are no public per-batch PDFs to back up the COA claims.

The site claims "independent third-party testing in the US," and a recent TikTok backs up the listed COAs. Transparency and the technical reputation both look solid.

Per-product COA PDFs (e.g. Tirz, Semaglutide, BPC-157) are tested under GMP at MZ Biolabs with purity of at least 99%. The GMP setup inspires solid technical confidence.

Complex clinical-grade peptides.

Popular on Canadian forums, with fast delivery into the US.

A recent COA (April 2025) shows 99.02% purity, tested by Janoshik with public verification available. Packaging is professional, the batch is identified, and overall transparency is good.

Per-batch COAs are available as PDFs, the outsourced lab is dependable, and the technical reputation is consistent.

Strong technical transparency, with COAs that are easy to find and thorough.

The site states independent 99%+ purity, cites GMP/ISO practices, offers free shipping, and generates COAs through a "Generate COA" button. The catalog is large and the Trustpilot UK reputation is good.

Per-batch COAs are provided through a browsable library and product-specific pages (e.g. SS-31 15 mg), confirming identity, purity, and concentration testing run by BioRegen. The site spells out a clear RUO policy alongside a deep peptide and SARM catalog, and links on social media and a subreddit point to a dependable reputation.

Per-batch COAs are produced via a "Generate COA" button, confirming purity of at least 95% and the exact mass for each batch, while the vendor advertises 99%+ purity by HPLC/MS in GMP facilities. Trustpilot carries 105 reviews backing up its reliability, and shipping is fast with discreet packaging and 24/7 UK-based support.

Per-batch COAs are accessible (first-party), with detailed testing and a positive reputation.

Well regarded on forums, with secure delivery in the US.

Offers custom synthesis alongside a standard catalog (GLP, GHRH).

States 99%+ purity with independent per-batch testing, posts COAs directly on product pages, and notes QR codes in its FAQ. The store is a professional Shopify-style site with signs of fast shipping and multiple support channels (chat, email, phone), and on-site feedback ("order arrived yesterday…") points to satisfaction with shipping speed and service.

HPLC/MS COAs are posted for each batch, with the FAQ noting results go on the product page, and stated purity is at least 99%. It is a cGMP US-based store with fast shipping, an educational blog, and active support, holding a 4.0 Trustpilot rating.

Every product batch comes with a Certificate of Analysis from independent lab testing, available on request or via links on product pages (e.g. Tirz 5 mg, BPC-157). Purity is claimed and guaranteed at 99.6%+ by HPLC/MS, delivery runs roughly 2-5 days under a "Results-or-Refund" policy, and the vendor has a positive reputation with detailed testimonials about product purity and quality.

Per-batch COAs are posted on the "Lab Results" page, and the FAQ explains the testing rigor (HPLC + MS). Trustpilot sits at 4.8/5 across 98 reviews praising quality, speed, and support, Reddit hosts technical discussion of the COAs tied to each vial, and TikTok reports legitimate peptides backed by COAs.

COAs through MZ Biolabs are accessible for a range of products, and the vendor offers active support, global shipping, and educational content. Be aware that blend prices run high, such as $209 for the Ultimate GI Repair.

The "Lab Results" page shows average purity around 99.5% on recent batches, the vendor has a reputation on forums like Reddit and TikTok, and the products hold up for research.

Advertises "3rd party tested" products at 99% purity with same-day shipping on orders placed by 2 PM. It rates 4.7/5 on Trustpilot across 30 reviews praising quality and service, and the catalog is broad enough to support advanced searching.

Per-batch COAs come as PDFs, pricing is clear, sales are RUO, and the operation runs out of Poland/EU and the US with fast logistics. Note that Trustpilot carries some reports of service problems on the European domains, though product quality is reported as high.

A "Lab Reports" guide includes stability studies (GLP-1, MOTS-c) and third-party analyses such as Finnrick, which averaged 6.7/10 across 37 tests. The Reddit reputation is solid, with comments like "Peptide Crafters has been legit for me… results are legitimately impressive," and Trustpilot sits at 4.2/5 across 13 reviews highlighting excellent service and fast shipping with COAs. TikTok feedback notes the transparency and research focus, and COAs are accessible through the site.

Runs its own domain with a catalog of roughly 82 products and a strict "research only" stance. ScamAdviser gives it a middling 71/100 trust score, and it sits on A2 Hosting. We found no batch-specific PDFs actually linked, though the site advertises purity of 99% or higher and a "quality tested" option at checkout. The terms restrict use to in-vitro only. Pricing is standard with the usual push toward popular blends. The layout is professional and the policy is clear, but there are no detailed technical reviews to back the claims.

Lab Test Reports provide per-batch COAs, with the vendor stating it rigorously tests every batch. Documentation is accessible by PDF and QR code, and the terms emphasize third-party testing. Founders and a Facebook group have spoken positively about it, and one reference described it as "Precision selling purity, sterility, and consistency."

The site advertises being "GMP manufactured and 3rd Party US lab tested" and posts certificates of analysis on-site describing HPLC/MS purity testing. There are signs of a decent reputation across forums and customer reviews, though we found no direct Trustpilot presence to corroborate it.

Markets RUO products and "Third-Party Tested" kits claiming purity above 98-99%, with each batch said to include a full COA covering identity, purity, endotoxins, and heavy metals plus a QR code, per its Wholesale page. The BPC-157 listing describes a 4x5 mg kit with bacteriostatic water, consistent purity, and an included COA, and there is a Semax spray rated at 99% with a COA. The company states US manufacturing, ISO/USP-level rigor, and QR-linked sample analyses.

Batch-accessible COAs with purity testing around 98%, fast shipping, and 24/7 support at rcdbio.co. Reputation appears solid.

A well-organized vendor offering per-batch COAs, an RUO focus, and clear sales policies posted on the site. Has been recommended as a technical research option.

COAs are visible directly on product listings (for example MK-677, 5-Amino-1MQ, Methylene Blue), backed by HPLC/NMR testing. It offers a refund policy for products that fail testing and same-day shipping within the USA.

The site advertises "COA with Every Batch" through a third party, and its About Us page reiterates purity testing of 99% or higher via HPLC/MS. COAs appear on product pages, such as SS-31 with a direct download link. It also touts same-day shipping, a scientific framing, and high transparency.

Claims fully controlled US production with per-batch COAs available on each product. A Reddit user noted being "about to test out Tydes ... seems legit." The site offers strong clarity, good transparency, and an informative blog.

Ships within Europe with tracking and offers good value. Provides a COA per batch.

Posts public Janoshik COAs per product, for example GLP-3-RT at 98.84%. The layout is modern, and prices line up with the usual clone vendors.

A research-oriented vendor with per-batch COAs available, a working website, and good logistics, though it still has little visibility in technical forums.

Carries Retatrutide, Tirzepatide, Semaglutide, and MOTS-c.

Fixed pricing and claimed purity of 99% or higher, with COAs shown on-site but not as batch-named PDFs. The layout is unremarkable and it does not reach top-tier technical status, but it comes across as transparent with a good reputation.

High transparency with per-batch COAs, though it has limited visibility in technical forums.

Ships to the USA with traceable shipping and otherwise keeps a low profile.

Publishes purity of 99% or higher along with COAs and reports, and has positive Reddit feedback, including one user who claimed to have "lost 18 lbs... legit." Presents as transparent with real-world results.

Posts public per-batch COAs citing 99% purity, with an RUO focus, free shipping over $175, and technical support.

Accepts orders to the USA, with discreet shipping and good support.

The site claims "Third Party Tested" with HPLC/MS and purity of 99% or higher. A login button and a note that "Results of the tests are periodically published here" suggest COAs are available only after sign-in. There are minimal forum complaints and nothing that undermines its standing, plus fast shipping and a detailed FAQ.

Product pages display COAs with PDF/QR access. Vials look professional with claimed purity of 99% or higher across single peptides and blends, and support is offered by email and text. The site makes clear RUO statements. TikTok and Facebook feedback praises the quality, COA transparency, and competitive pricing.

Supplies custom peptides, including GLP and Tirzepatide on request.

States that every product batch undergoes rigorous external lab analysis (HPLC/MS and others), with COAs reachable through the FAQ and a testing panel. Popular items include BPC-157, TB-500, Tirzepatide, Selank, and Adipotide at claimed purity of 98-99% or higher. Trustpilot ratings run 4.1-4.8/5, with reviewers citing "independent testing confirmed purity" and "excellent product quality." The FAQ lays out a public COA policy alongside ongoing support, and the store presents multiple categories with an RUO focus, fast shipping, and active support.

Provides per-batch COAs with visible graphs and reports such as a "Tirzepatide Report." Reviews back up the purity claims and fast shipping.

Supplies pharmaceutical-grade peptides on demand.

The site claims "Every batch goes through thorough quality checks" and lists peptides at 99% purity or higher with lab reports. The catalog is robust, including GLP-1 blends, with a scientific framing. There are no direct COA links, but batch testing is clearly referenced.

COAs are present but lack batch-level verification, and the testing lab is unfamiliar. Transparency is only moderate.

Posts public Janoshik COAs per product, for example GLP-3-RT at 98.84%. The layout is modern and prices match the usual clone vendors.

Offers genuine per-batch COAs with a good testing track record and traceable shipping, though it has a small footprint in technical forums.

Per-batch COAs are visible on the site, including a sample PDF such as Tesamorelin via direct link, with clear purity statements describing "fully tested research peptides." Access is gated by residency, age of majority, and being a research facility, which limits buyers but reinforces the technical focus.

A detailed FAQ stresses exclusive RUO use. PDF certificates (for example BN-24TZ30-001) document purity via HPLC/MS, and a "Tests" series is indexed by Janoshik in a public panel. The RUO catalog is extensive, with clear shipping policies for the US and Canada.

Ships to the USA, is still building out its site, and keeps logistics discreet.

Sells freeze-dried powders at claimed purity of 98-99% or higher, with a "COA Link" on each product and a "research use only" restriction. There are Reddit and r/antiMLM mentions flagging MLM-style marketing, but also positive reports on purity and effectiveness.

Per-batch COAs are indicated in a dedicated section, with fast US shipping, detailed FAQs, and an RUO lab focus. ScamAdviser rates it at 80% reliability.

In business for around 10 years and based in Slovakia, it claims purity above 99% with independent per-batch testing for identity, endotoxins, and heavy metals in CLND/UPLC labs. COAs are available on request and shipped with orders. Trustpilot sits at 4.3-4.5/5 across 12 reviews citing purity and speed, and the site includes a reconstitution calculator.

Per-batch COAs are accessible, including a BPC-157 result of 99.84% purity tested at the independent lab TrustPointe (PO-L0852). The site emphasizes transparency, purity of 99% or higher, fast shipping, and solid support, and customers report independent tests confirming quality.

Per-batch COAs carry the number printed on the bottle and are reachable via the site's FAQ, with claims of testing "often by multiple independent labs." Trustpilot sits at 4.0/5 with praise for support and delivery. Some users have warned about possible COA manipulation, but such cases appear rare and were resolved with refunds.

The site features a clearly labeled "Lab Results" tab and promises purity of 99% or higher ("lab-tested high-purity"). Social-media reviews back up batch verification, and the site organizes QR/Janoshik links for COAs, presenting a professional, credible setup.

Supplies GHRH, IGF, and custom sequences.

Product copy states "COA verified" with batch testing (for example the KLOW blend), and the site claims GMP operation with same-day shipping. Trustpilot scores 4.5/5 across 308 reviews, though some negative reports cite storage and support issues. Reddit points to a solid technical reputation, with the founder responding to criticism and noting a coordinated "review bomb."

Partial COAs without batch IDs are shown for some products such as NAD+, and there is no central COA page. The layout is responsive and the catalog is varied and legitimate.

States that COAs are available for each peptide, generated per batch and viewable via a "COA" button on product pages such as Tirzepatide. Strong transparency with a quality focus.

Carries GHRP, BPC-157, and traditional blends.

Offers protected shipping to the USA at very competitive prices.

COAs are available through a "Testing" section, with positive mentions on TikTok and Reddit. Note that the domain is new, which may add some uncertainty.

The homepage claims "Third-party Lab Tested" and "99% Purity," and there is a "COAs" section.

Carries BPC-157, TB-500, EP-141, and blends.

A Quality Control section states that COAs covering sequence, purity, and tests ship with each order. Trustpilot sits at 4.6/5 across 39 reviews highlighting speed, service, and quality.

The site offers a "COA" tab for certificates, claims purity above 99%, and says products are made in a US GMP facility. It advertises a 30-day money-back guarantee and 2-day shipping, and TikTok videos show positive reviews indicating the COAs check out.

Sells RUO peptides labeled "Research grade" and claims "Third-party tested," with clear terms explaining its R&D focus. It offers proactive in-house support and free shipping on orders over $99.

An "Independent Test Results" page points to third-party testing, with shipping from the USA out of GMP/FDA facilities. The scope of the COAs remains somewhat unclear.

Hosted on BigCommerce with a varied catalog and competitive pricing (Retatrutide from $75 to $130). It claims rigorous per-batch testing but does not post public COAs or batch-identified PDFs. The design mimics trustworthy sites, yet it lacks batch-level technical transparency, making it only a moderate pick best suited to experienced buyers.

Each batch carries a viewable Janoshik COA. Nine Retatrutide samples came back at 99.49–99.94% purity. Reddit discussion backs the vendor's legitimacy on the strength of those verifiable certificates.

COAs are posted in the injectable products section. The company is based in Vero Beach, FL, with a longevity angle, and has a TikTok presence carrying positive testimonials. Red flag: a Reddit complaint alleges fake tirzepatide and a poorly handled return.

The site advertises "3rd Party Tested in the U.S.A." and labels everything RUO. It actively sells GLPs, blends, and kits, pushing fast shipping and bulk pricing, and on-site feedback praises purity and quick delivery. Reddit threads name suppliers like Biotech/Certified, with users citing "Peptide Pros" and similar shops as comparable options.

Ships to the USA in plain, unbranded packaging. Pricing is competitive, particularly on GH.

BPC-157, TB-500, and Ipamorelin blends.

Products carry HPLC results on the label (for example BPC-157 at 99.6%, Epitalon+ at 99%). US-based address and support, fast shipping, and solid eBay/feedback reviews. The site looks trustworthy, but it offers no per-batch COA.

Analyses are displayed for each submitted peptide, and the team reportedly checks purity before stock is released. Reviews mention personalized shipments that include a photo of the batch. The vendor is also active on TikTok, spotlighting tirzepatide and retatrutide.

Supplies up-to-date COAs for each product and confirms the batch on the label. Technical-forum mentions point to good quality and purity.

A COA page exists but is incomplete, with certificates visible for only a handful of products. The testing appears genuine yet is not done per batch. The site looks visually similar to others in the same family, hinting at a shared group, and has little public reputation. Treat with extra caution.

Test certificates labeled "included in each batch" appear on product pages such as IGF-1. The EU-based vendor offers discreet packaging and international shipping. COAs are clearly referenced but only accessible per product, with no direct PDF or QR in the general category. The operation looks professional, with a technical mission statement, FAQ, email/WhatsApp support, and extras like free bacteriostatic water and informational material.

A small brand relying on first-party COAs with no external testing. Reviews are favorable (43 reviews at 5 stars on Shopify), and TikTok users report good quality.

Marketed strictly to health professionals, with a handy dosing calculator and scientific content via blog and social media. COAs are described as "stringently tested," but there are no per-batch PDFs or direct downloads, only an FAQ description. ScamAdviser rates the site as safe.

Sells a range of formats (BPC-157, TB-500, blends, capsules, and sprays), billing them as "highest quality peptides" that are "thoroughly examined research peptides." The product page mentions a "Certificate of Analysis (COA)" in the copy, but no PDF or download link is actually visible.

Buyers must be 21 or older and the products are RUO. Customers note that "the COA gives the added benefit," and reviews are positive (60 reviews averaging 5 stars) with fast shipping. However, no COAs are posted publicly on the site; they are only provided on request.

The site advertises "99% pure research peptides" for research use only. ExcelMale forum posts describe a good buying experience with fast delivery, genuine bac water, and proactive customer service. COAs are supplied on request, with testing through MZ Biolabs reportedly still pending.

COAs are visible on the site but none are third-party tested. The brand has no strong forum reputation. Layout and catalog are solid.

Products like the Wolverine Nasal Spray and Dropper carry a "VIEW COA" button, giving per-batch certificates tested by an independent lab. Reputation is good, with reviews ranging from 9 to 1,868 per product and marketing that cites technical references.

TikTok content insists "COAs available for all products." The catalog is extensive, but no PDFs are directly visible; access appears gated, likely behind a profile. Users must request COAs after logging in or reaching out.

Holds a 4.0/5 on Trustpilot, with praise for service and delivery. Claims 99%+ purity backed by independent HPLC testing, plus fast shipping and free delivery on orders over $300.

A visible per-lot COA with a solid technical standard, but no verification from an independent outside lab. The QR code just points back to the same document, and the COA carries no site branding. The layout is basic and the reputation is still being built.

The site states that COAs can be viewed on each product page. The layout is plain but functional, and there are no clear mentions in technical forums.

A premium-looking brand aimed at the longevity and aesthetics market. No COAs or lab tests are visible, and it does not appear to operate as a conventional RUO peptide vendor. It is absent from technical forums. It may well be legitimate, but it offers no laboratory transparency.

Labels show purity figures and reference third-party testing, but there are no PDF files and no visible batch numbers. Runs on Shopify, with free shipping over $240 and an active loyalty program.

A recently launched site with a small catalog, no technical verification, no quality section, and no mention of testing. It has a generic look and clone-style pricing. Not advisable for sensitive compounds.

The site looks professional, but its COA is not batch-specific, clear HPLC/MS testing is missing, and it has little forum presence. Could be risky for newcomers.

A clean site making GMP/FDA-standard claims, but it provides no third-party per-batch COA. The listed business address is Vox Logistics, Provo, Utah. It carries little forum reputation.

A modern but generic layout with no COA section or purity testing and only vague language about quality control. Product names echo those of suspicious sites ("Reta," "Cagrilintide," etc.), suggesting it may be part of a cluster of look-alike storefronts.

Sells BPC-157 as a supplement co-formulated with BioPerine, so it is not a pure RUO peptide. It claims quality and testing but offers no public COA or identifiable batch. This is a commercial nutraceutical blend rather than a research peptide.

A COA may only be available after making contact, with little technical content and a weak forum presence.

Claims COAs ship with orders and that everything is "rigorously tested for purity and consistency." It stresses RUO messaging and a 99% minimum purity, but no public per-batch PDFs are available for download.

Advertises 99%+ purity with third-party testing on every batch and a varied catalog of popular peptides. No public COA PDFs are provided; support is email-only, with no technical portal.

Sells RUO peptides entirely, with purity claims stated on the products. There is no public access to per-batch COAs; they must be requested before buying. Available in capsule and powder portions. Ratings sit around 3.9/5 from just 14 reviews.

Centered on cosmetic peptides (Argireline, GSH, COG112, etc.) advertised at >98% purity. There are no per-batch COAs, only on-site statements, with no QR codes, PDFs, or independent testing.

A mix of OTC and RUO products. Certifications are generic ("Science-Backed," "Lab-Tested") with no lot-specific links. ScamAdviser gives it a 70/100 trust score. The domain is new (around 3 months old) and runs on Shopify. Promotion is heavy, with a wellness/capsule focus and little technical literature. There are no technical-forum mentions and its online reputation is only emerging.

BPC-157, TB-500, and basic blends.

A simple, functional site. Some COAs are available, though not all are batch-specific. Forum presence is moderate, with positive and neutral reports and no signs of fraud.

Provides per-batch COAs from MZ Biolabs with downloadable files, along with endotoxin reports.

The site claims lab testing and a per-batch COA in its "About Us" section and features a "Lab Test Results" page, yet no COAs are actually available to view. It sells GLP-1, BPC-157, Kisspeptin-10, and a SARMs blend, shipping within 1-2 business days but not internationally. Despite the quality claims, the lack of publicly accessible COAs undercuts full technical confidence.

A modern design following the familiar pattern of sites that copy each other's layouts and product names. There is no COA section, testing, or purity data. Relabeled products ("GLP-3 RT," "GLP-3 Sema") mirror those on suspicious sites, suggesting a possible clone or rebrand. External presence is minimal.

Claims to be "third-party tested," with COAs provided only after purchase.

Advertises "lab-tested SARMs" with COAs on a results page. Reputation is mixed (TrustScore around 3.8/5), and the resource page limits how much of the certificates the public can actually verify.

The site advertises a "COA Provided With Every Order," purity of 98.9–99%, a Swiss-inspired image, GMP production, and detailed marketing, but no COAs are viewable before purchase.

A store that looks well put together but offers no COA, no visible testing, and no established reputation.

A functional site with a visible catalog and an "Our pledge" section citing internal quality testing. The COA is generic, with no per-batch PDF or QR. User reviews report positive delivery and support.

Claims 99% purity but offers no per-batch COA. The site is active and delivery is confirmed.

The site advertises "99%+" purity and fast delivery. A "Lab Test Results" page is promoted but is closed to the public and requires a request. Customer-supplied test images may circulate via TikTok, but there is no visible per-lot COA. Standard RUO product line.

COAs are present but generic, some products are listed with vague claims, and the site works but is confusingly structured.

COAs are available, but some older batches show purity around 96% despite claims those were discontinued; one user reported a lost order and a delayed refund. Trustpilot sits at 4.0/5 across 13 reviews praising delivery and support. ScamAdviser gives 70% trust but flags the recent domain and hidden WHOIS ID.

The site claims "lab-tested high-purity" products and displays a "Lab-tested high-purity peptide certification" seal up top. Logistics are efficient, with fast US delivery. Its Trustpilot profile shows 4.5/5 from 22 reviews, many noting that a COA was provided. Still, there is no direct per-batch COA (PDF) access on the site, and technical communities cite a lack of full transparency. Insist on COA access before buying.

Rated 2.7 on Trustpilot across 184 reviews, with accounts of fast delivery but also of orders never shipping and poor communication. The COA was pulled from the page, though it still sells a range of RUO products. The site appears legitimate but carries logistical risks.

The "7 tests" section points to a "self-care" angle rather than scientific research. A "Free shipping from $134" banner is unremarkable, and there is no mention of specific analytical testing for peptides. Nothing turns up in the way of per-lot COAs or PDFs, only generic statements. Online presence is limited, with no references in technical forums or analysis platforms. The layout is professional but lacks analytical transparency or any genuine focus on purity and research.

Users say COAs and independent tests are provided, but there is no direct access to the PDFs. Reputation is mixed (Trustpilot 3.1/5 from 93 reviews), with reports of concentration errors (aniracetam vs. piracetam). Frequent promotions suggest high-volume selling, but purity appears inconsistent.

Pushes a large peptide lineup with "Buy 1 Get 1" promotions, a claimed 99% purity, rock-bottom pricing, and free shipping. None of it is backed up, though: there are no per-batch COAs anywhere on the site, just blanket "Research Peptides" marketing language.

Wide catalog sorted into buzzword buckets like "Cognitive Enhancing," "Anti-aging," "Muscle," and "Healing." Nowhere does the site offer per-batch COAs or downloadable documentation — only vague "science-backed" assertions with nothing to substantiate them.

The site asserts HPLC-verified purity and production in cGMP facilities, but provides no per-batch COAs, no PDFs, and no QR codes to confirm any of it. The catalog is decent and the domain is functional, yet there is no verifiable public or technical track record to lean on.

Advertises "premium peptides" in lyophilized form, but the RUO catalog cites no COAs and no batch testing, with zero HPLC or MS data to support the claims. Standard product list with no real technical transparency.

Slick presentation and cheap pricing, but no publicly posted COA. Details are thin, there is no community discussion, and no clear testing data is offered.

A brand-new site with almost no public information. It posts no COAs or test results, is entirely absent from any forum discussion, and carries only limited stock.

The site looks professional, but there is no public COA anywhere — not on product pages, not in any general section — and no evidence that testing actually happens.

Bulk supplements.

Bare-bones site offering no COA and no technical support, with not a single credible mention to be found online.

Bills itself as the "UK's #1 SARMs Manufacturer" selling "premium-quality research compounds" with fast Royal Mail shipping, and the store is active with a FAQ and an RUO setup. Even so, no per-batch COAs are published; the company says it tests but offers no direct public access. Some praise its purity, but there are equally legitimate concerns about the missing lab transparency.

A solid fit for institutional research, but of limited use for an individual buying online.

A basic site with no sign of any COA or testing, and no responses to technical questions. Approach with caution.

Purity appears good, but there is no formal COA on offer and no independent verification to confirm the claims.

Touts "next-gen" peptides yet provides no COA or lab data — just a generic blog and marketing copy with no verifiable technical backing.

COAs are available right from the product page (pharmaceutical-grade methylene blue). Note that this vendor isn't focused on peptides or SARMs.

Says it tests its products but never shows per-batch COAs. Reputation is generic, with no footprint in technical forums.

Promises "GMP tested" and "science-backed" products, yet there are no per-batch COAs, PDFs, or QR codes to verify. No forum mentions exist and the overall online presence is very thin.

No per-batch COAs, oral-only formats, and reports of blocked access to lab data. Not a good candidate for standard technical analysis.

Claims independent third-party COAs, and forum users report consistent results, but the COAs aren't directly accessible on the site. Reviews skew positive; however, there are accounts of inconsistent dosing and past questionable practices.

Testing is done in-house with only limited COA coverage (for example, BPC-157 alone). It shows up on Trustpilot and ShopperApproved, but with serious reviews alleging fraud and erratic shipping, plus high prices and slow support.

Leans on slogans about "top-tier research chemicals and peptides" but offers no per-batch COAs or technical PDFs. It's a generic storefront with little community presence and no evidence of testing or product transparency.

Describes its products as "rigorously tested" but never displays visible per-batch COAs or direct PDF access. Technical support is unremarkable.

A telemedicine clinic running a B2C model. It posts no public technical COAs; customers report successful delivery and satisfaction, though some criticize the marketing and the cost.

Appears to be a rebranded relaunch of Aminos Research, with forum chatter calling it a "disguised company." COAs are controlled internally by the same owner, raising a clear conflict-of-interest risk.

Centered on medical devices and aesthetic supplements via a B2C model with medical-style marketing. There are no per-batch COAs, and the offering falls outside the core technical scope here.

A corporate site with a broad catalog spanning peptides, SARMs, and steroids. The brand claims purity and pharmaceutical-grade operations but publishes no per-batch COAs, and its outsourcing is questionable. Reviews and forums report counterfeit products, severe post-injection pain, and inconsistent trust; Trustpilot sits at 2.2/5 with numerous complaints. Despite the scale of the operation, the lack of technical transparency combined with the steady stream of negative reports erodes any real trust.

Specializes in IGF-1 sprays made from deer antler velvet. There are no per-batch COAs, and the items are sold as supplements rather than RUO research peptides. Reputation is mixed (Trustpilot 3.0/5, Knoji 3.5/5). This is a supplement business, not a scientific one.

The seller advertises peptides "made in the USA" with same-day shipping. But Trustpilot rates it 3.2/5, including a 1-star review warning that they "steal your money… don't send anything." There are no public COAs at all and no mention of batch testing.

Request a COA before trusting anything here; the vendor's reputation is still minimal.

A very sparse site with no published COAs and no clearly itemized products. The business model lacks transparency — ask for a COA before even considering a purchase.

Active on TikTok but with no clear sign of COAs, purity reports, or an RUO setup. The absence of any proven data makes this a high technical risk.

The site markets telehealth and claims purity, but it provides no per-batch or otherwise public COAs — treat with caution given the missing technical transparency.

Offers a broad lineup but shows no visible COAs. It's a generic sales site with no lab transparency.

A telemedicine clinic that ships prescribed peptides (such as BPC-157 and TB-500) through a licensed pharmacy. There are no public technical COAs, as the focus is clinical.

Says it has testing but never shows it. The site is inconsistent, reputation is poor, and logistics are weak.

🛑 Recently shut down by the FDA, with forum reports of cancelled orders and delayed refunds. The site is currently offline or showing only a static image with no working features (no products, COA, or cart). Some accounts suggest shipping may still occur, but purity and traceability can't be verified. A Muscle & Brawn review notes good early feedback, yet the site is no longer genuinely accessible.

A vendor centered on pharmaceutical products, with no public per-batch COAs for peptides or SARMs and no research orientation.

A recognizable sports-supplement brand, but with no per-batch COAs and a purely commercial, non-technical focus. Not appropriate for RUO peptides.

No genuine COA — just promotional copy. Avoid.

A clothing vendor that sells no peptides and offers no COAs. Doesn't meet the criteria for technical analysis.

No COA, weak forum reputation, signs of inconsistent products, and no visible testing.

The site has no COA section, no technical evidence, no testing, and no reputation — wholly unreliable and not fit for inclusion.

This may be a fake or cloned domain — avoid it until it can be confirmed.

Numerous scam complaints, no COA, and a low Trustpilot rating.

Like Prevail, it has no technical sections, no COA, and no reputational footing — a total absence of transparency.

COAs are available but badly out of date (the most recent are from 2020), alongside reports of unethical marketing and an eventual shutdown. Avoid.

Hit with an FDA warning over COVID-19 claims and has since shut down. Although it says it provides COAs, there's no current evidence — avoid.

The domain rcslander.com does not match the legitimate supplier; the site is non-existent or redirects with no technical content. This points to an error or a phishing risk.

🚨 Heavy fraud reports and dubious quality — the Evolutionary forum claims the "products are very low quality… like buying steroids from a flea market" and warns "don't be fooled." No FDA action was found, though there is a 2016 FDA letter flagging sales of prescription drugs without a prescription. Trustpilot sits at 3.7/5 with just one recent review, and sales run through cryptocurrency or transfer with suspicious logistics.

• Takes payment via Bitcoin and Western Union with no transparency — "only obscure payments" • Carries underground brands such as Para Pharma and Dragon Pharma • Uses marketing hooks (express USA/UK shipping) but offers no COA • Forums describe inconsistent quality: "very low quality… like buying steroids from a flea market," though fast delivery occasionally draws praise • Trustpilot 3.3/5 with split reviews ranging from "legit results… customer service is great" to "lowest quality oils."

A telemedicine clinic dispensing prescribed hormone therapy and peptides through pharmaceutical compounding, rather than an RUO supplier with batch COAs. The site outlines medical procedures and shipping via a licensed pharmacy, and it provides no certificates of analysis.