HMG covers both sides of the fertility equation in a single compound. It carries the activity of two key reproductive hormones at once, FSH and LH, which is exactly the combination the body relies on to mature eggs, produce sperm, and keep its hormonal signalling in balance. That two-in-one profile is what has made it a mainstay of fertility research and treatment for decades.
What HMG is
HMG (human menopausal gonadotropin), also called menotropin, is a preparation that contains both follicle-stimulating hormone (FSH) and luteinizing hormone (LH) activity. Those two hormones do different jobs that complement each other: FSH drives the development of eggs in women and sperm in men, while LH drives ovulation and testosterone production. By delivering both together, HMG provides broad reproductive support that a single hormone cannot.
What the research shows
In women, HMG is a long-established tool for ovulation induction and assisted reproduction. By supplying FSH, it stimulates the ovaries to develop follicles, and the LH component supports their maturation. Research in assisted reproduction has shown that HMG improves the collection of mature eggs and increases implantation rates compared with FSH alone, which is why it remains widely used in IVF and related protocols. It is especially useful for women who do not ovulate reliably on their own.
In men, HMG plays a complementary role to HCG in restoring fertility. While HCG supplies the LH-like signal for testosterone, HMG adds the FSH activity needed to support the Sertoli cells that drive sperm production. Research on male fertility has shown that combining gonadotropin support this way achieves complete spermatogenesis in a high proportion of patients, substantially more than testosterone-style signalling alone. The two together rebuild both halves of the system.
How it works
HMG works by supplying the two pituitary signals the gonads depend on. The FSH component binds FSH receptors, stimulating follicle development in the ovaries and Sertoli cell function in the testes, the cellular environment where eggs and sperm mature. The LH component binds LH receptors, driving ovulation in women and testosterone production in men. Because it restores both signals at once, HMG re-creates the natural balance of gonadotropins, which is why it is often the choice when broad, two-sided reproductive support is the goal. In practice it is frequently paired with HCG to fine-tune the LH side of that balance.
Quick facts
| HMG | |
|---|---|
| Type | Gonadotropin preparation (FSH + LH activity) |
| Also known as | Menotropin |
| FSH role | Egg development (women), sperm production (men) |
| LH role | Ovulation (women), testosterone (men) |
| Best known for | Fertility support and ovulation induction |
| Often paired with | HCG |
| Form | Lyophilized powder, reconstituted before use |
What to look for when buying
Gonadotropin preparations demand accuracy, so the testing behind a batch matters. Look for a Certificate of Analysis (COA) from third-party testing and a clear purity figure. Every batch of Marek Pharma’s HMG is lab-tested with a COA, lyophilized for stability, and ships from within Canada.
References
- Efficacy of FSH, FSH + LH, and human menopausal gonadotropin on assisted reproduction outcomes (meta-analysis of controlled ovarian stimulation).
- Menotropins mechanism: combined FSH and LH activity in reproductive treatment.
- Combined gonadotropin therapy (HCG with FSH or HMG) for spermatogenesis in male infertility.
For laboratory and research use only.