Where to buy Follistatin 344 (2026)
Follistatin 344 is a glycoprotein that blocks myostatin and activins from the TGF-β family. By switching off myostatin, the natural brake on muscle size, it can spur substantial muscle growth and may help reduce body fat.
#1 Nootropics Depot Editor's Pick | #2 Pure Lab Peptides | #3 Empower Peptides | |
|---|---|---|---|
| Score | 9.5/10 | 9.5/10 | 9.3/10 |
| COA | ✓ Yes | ✓ Yes | ✓ Yes |
| Country | USA | USA | USA |
| Why we rate it | 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), … | Transparency here is strong: full per-batch COAs are posted on the site, with independent HPLC and MS testing run by a certified l… |
| Check prices at Nootropics Depot →Read review → | Check prices at Pure Lab Peptides →Read review → | Check prices at Empower Peptides →Read review → |
How we picked these suppliers
Every supplier above publishes third-party certificates of analysis we've checked, and ranks at the top of our independent scoring across 207 vendors — based on COA transparency, lab testing, and community reputation. Rankings are never sold; see our methodology. Before any purchase, verify the current per-batch COA for the exact product you're buying.
Quick facts for Follistatin 344: typical research dose 100 mcg · evidence grade B+ · primary use: Muscle. Read the full Follistatin 344 guide or browse all supplier rankings.
For informational and research purposes only. Not medical advice. Products referenced are sold for laboratory research use only and are not for human consumption.