Hmg

Overview

Human Menopausal Gonadotropin (HMG) is a purified hormonal product combining follicle-stimulating hormone (FSH) and luteinizing hormone (LH). It works by acting directly on the gonads to promote testosterone output, sperm maturation, and ovarian follicle growth, and is used principally to treat infertility and hypogonadism.

Editorial verdict

HMG is a legitimate prescription fertility medicine with a real clinical track record — but readers should be aware of a serious mismatch on this page. The dosing, effectiveness, and availability notes describe genuine HMG (the FSH/LH gonadotropin), while the two cited studies are actually about HMB (beta-hydroxy-beta-methylbutyrate), a muscle-related supplement metabolite that is a completely different compound. That conflation is a red flag: do not treat HMB testosterone data as evidence for HMG gonadotropin therapy. The gonadotropin itself is well established clinically; the supplement-side citations here are off-target.

How it works

Because it supplies both FSH and LH, HMG can stimulate the testes or ovaries directly, supporting sperm production and follicle development and helping restart the body's own hormonal signalling.

Evidence quality

The overall grade is A+, weighted across 225 peer-reviewed studies including 57 RCTs and 10 meta-analyses, with 116 supporting, 61 mixed, 31 null, and 17 refuting findings, and 1 study flagged as criticised. Note again, however, that the two meta-analyses cited on this specific page concern HMB supplementation and testosterone/IGF-1 adaptations from resistance training — not HMG gonadotropin. One pooled 15 trials and found HMB raised testosterone; the other reported greater testosterone and IGF-1 adaptations when HMB is paired with resistance training.

Who should be cautious

Female users face a real ovarian hyperstimulation risk, and anyone using HMG off-label for hormonal recovery should account for estrogen swings as testosterone rises. Sourcing outside a prescription channel adds purity and identity uncertainty.

Community sentiment

Across 9 community reports, the handful of logged effects (one mention each of lowering cholesterol and reducing cardiovascular risk) and side effects (muscle pain, cramps, weakness, statin-induced myopathy, muscle degradation) again reflect the muscle/HMB confusion rather than gonadotropin use, underscoring the data-quality caveat above.

Dosage and effectiveness

For fertility, HMG is often dosed at 75-150 IU two to three times weekly, frequently stacked with 500-1000 IU of hCG for a fuller hormonal restart, and typically run for 3-6 weeks depending on the degree of suppression. Because it carries both FSH and LH, it is often reported as more effective than hCG alone for fertility, can reach high success rates in hypogonadotropic hypogonadism, and is used to preserve testicular volume and function during aggressive cycles.

Availability

HMG is available by prescription as a fertility drug (for example, Menopur), and is also sourced through specialty peptide suppliers for research and off-label hormonal recovery.