Reviewed by the PeptideMind Team · Updated July 15, 2026

HMG Dosage Guide, Benefits & Side Effects

HMG combines FSH and LH activity to induce ovulation, support IVF cycles, and restore spermatogenesis in hypogonadal men. See clinical data.

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HMG Dosage Guide for Hormonal & Fertility SupportHMG Dosage Calculator

HMG is a fertility hormone that stimulates the testicles to produce sperm and testosterone. It's often used with HCG after a steroid cycle to help restore natural fertility and hormone production.

Vial size

75 IU

Bacteriostatic water

1 mL

Dosing

75–150 IU

Frequency

2–3×/week

Cycle

4–12 weeks

Benefit

Hormonal & Fertility Support

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Basic Dosage Calculator

Calculate peptide doses with our visual syringe guide.

Peptide per vial

Target research quantity

Bac water added

What is HMG?

Human Menopausal Gonadotropin (HMG) is a fertility medication made from hormones found in the urine of postmenopausal women, containing a natural mix of two key reproductive hormones (FSH and LH). It's used clinically to stimulate the ovaries or testes directly, commonly as part of IVF treatment or to treat certain fertility disorders. Treatment typically involves daily injections over one to several weeks, depending on whether it's used for women or men.

Sexual

Research targets include libido, reproductive hormone signaling, and sexual function.

Hormonal

Research targets include endocrine signaling and hormone receptor pathways.

Hormonal

hmg

Hormonal

Is HMG FDA approved?

HMG is FDA approved.

FDA Approved

HMG has been reviewed and approved by the FDA for safety and efficacy in its approved indications.

Regulated Manufacturing

Manufactured under FDA-regulated quality standards, ensuring consistent purity and dosing.

Prescription Use

Legally available by prescription for its approved medical indications.

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How Does HMG Work?

One part of this hormone mix attaches to receptors that mature egg-producing cells in women or sperm-producing cells in men; the other part attaches to receptors that drive the ovaries or testes to produce their own hormones, including testosterone. Together, the two halves stimulate the reproductive organs directly.

FSH matures cells

One part attaches to receptors that mature egg- or sperm-producing cells.

LH drives hormones

The other part attaches to receptors that produce testosterone and other hormones.

Works on both halves

Together, the two halves stimulate the reproductive organs directly.

How to reconstitute HMG

View guide

The materials you'll need and step-by-step instructions for safely mixing HMG with bacteriostatic water.

Materials needed

Your HMG vial (lyophilized)

Alcohol swabs

Bacteriostatic sterile water

3 mL syringes (Luer Lock tip)

25G or 27G needles (Luer Lock). Other gauges may also be acceptable.

Sharps container (optional)

Remove the caps

Remove the caps from both your HMG vial and your bacteriostatic water vial.

Sanitize the rubber stoppers

Wipe down the rubber stoppers on both vials with alcohol swabs and let them dry for about 3 minutes.

Attach the needle

Take your 3 mL syringe and needle. Twist the needle's plastic hub into the Luer Lock tip on the syringe to secure it.

Draw the bac water

Pull back on the plunger to draw your desired volume of bacteriostatic water. If you overfill, just push the excess back in until you reach the right marker on the syringe.

How much bac water? HMG typically comes in a 75 IU vial. We recommend 1 mL of bacteriostatic water, though anywhere between 1 mL and 3 mL is acceptable. For larger vials you can use up to 5 mL — more bac water makes microdosing easier, but insulin needles usually max out at 1 mL per injection. That means a lot of bac water might force you into multiple injections to hit your target dose. Unless you're microdosing, 2 mL per vial is a solid rule of thumb.

Insert the needle into the HMG vial

With the bac water in your syringe, insert the needle into the HMG vial at a slight angle to avoid pressure buildup.

Use a thin needle: Stick to 25G or higher to avoid damaging the rubber stopper. Higher gauge means a thinner needle.

Release the water gently

Let the water run gently down the side of the vial. Don't inject it forcefully.

Heads up: Sometimes the plunger pushes itself in as soon as the needle enters the vial. Hold the plunger back so you have full control over how fast the bac water enters.

Swirl to dissolve

Avoid shaking. Gently swirl, flip, and roll the vial to dissolve the powder.

Be patient: This usually takes 2 to 5 minutes of consistent swirling, mixing in a circular motion, and gently flipping the vial up and down. The water needs to run through the powder many times to fully dissolve it. Don't shake or get aggressive with it.

Check for full dissolution

The solution should be clear with no visible particles. If it's cloudy or clumpy, wait a minute and repeat the swirling step.

Cap, dispose, and store

Once you're done, cap the needle and dispose of it (ideally in a sharps container). Store the reconstituted HMG vial in the fridge whenever it's not in use. It will stay good for approximately 30 days.

How to Store HMG

Freeze the dry powder, though it can handle room temperature for a few weeks. Once mixed with liquid, refrigerate and use within about a week, or keep it well below freezing for longer, avoiding repeated freezing and thawing.

Lyophilized Storage

-20°C (stable at room temperature for up to 3 weeks).

Reconstituted Storage

Refrigerate at 2–8°C and use within 2–7 days.

Long-Term Storage

Keep below -18°C; avoid freeze-thaw cycles.

A smartphone displaying a "Storage Guide" for peptides, indicating a safe storage temperature range of 2–8°C, with warnings to keep away from light, heat, and freezing. The background is light blue, and additional tips on protecting the peptides are visible below the temperature range.

What Are the Benefits of HMG?

What research says it may help with, and how it works in the body.

female fertility fdaapproved

: Used in IVF treatment to stimulate the development of multiple egg follicles at once.
: Effectively triggers ovulation in women with polycystic ovary syndrome (PCOS).
: Stimulates egg-containing follicles to develop in women who aren't ovulating on their own.

male fertility

: Contains two hormones: one (FSH) that promotes sperm production, and another (LH) that stimulates testosterone needed for sperm to develop.
: Treats male infertility caused by the body not producing enough of the hormones that signal the testicles to work (gonadotropins).

testosterone support

: One of its hormone components (LH) stimulates the testicles to produce testosterone.

What Are the Side Effects of HMG?

Who should avoid it, warning signs to watch for, and what to know before combining it with other compounds.

Who Should Avoid It

: Primary ovarian failure
: Uncontrolled thyroid or adrenal dysfunction
: Sex hormone-dependent tumors
: Abnormal uterine bleeding of unknown cause
: Ovarian cysts (not due to PCOS)
: Pregnancy

Stop Right Away If You Notice

: Severe abdominal pain or bloating
: Rapid weight gain
: Difficulty breathing
: Nausea and vomiting
: Decreased urination

Milder Signs to Watch For

Discolored powder or solutionParticulates visibleExposed to temperature extremes

Was it helpful?Yes

How Long Should a HMG Cycle Last?

This breaks down how long a typical HMG cycle runs and what research suggests happens at each stage. Research shows that staying on a peptide continuously, without a break, may make it less effective over time.

That's why most research protocols build in a break between cycles, often called a washout period, to let the body reset before starting again.

Day 1-3: Follicular recruitment begins
Day 4-7: Follicular growth continues; monitoring required
Day 8-12: Follicles reach mature size; trigger ovulation
Week 0-0: Ovulation occurs ~36 hours after hCG trigger

Cheat Sheets Featuring HMG

See how HMG fits into a broader research stack with these free downloadable cheat sheets. Each one includes reference dose ranges, dosing frequency, and half-life for every peptide it covers. For research purposes only.

View all

Hormonal Peptide Cheat Sheet

5 peptides

Master Peptide Cheat Sheet

78 peptides

Sexual Peptide Cheat Sheet

6 peptides

HMG Research References

It is a fda approved compound

4Research references

HMG

HMG is a fda approved compound

HMG vs Recombinant FSH in PCOS Patients Undergoing IVF

No significant differences in pregnancy rates between FSH alone, rFSH+HMG, and rFSH+rLH groups.

n.d.

Effect of HMG and HP-FSH on IVF Outcomes

Beneficial effects of HMG on fertilization rates and pre-embryo development compared to HP-FSH.

n.d.

Human Menopausal Gonadotropin

HMG contains FSH and LH in 1:1 ratio extracted from postmenopausal urine.

n.d.

Generic hMG vs Costly FSH for Ovulation Induction

Generic hMG products do not adversely affect pregnancy rates and are appropriate cost-effective alternatives.

n.d.

Frequently Asked Questions About HMG

Straight answers on reconstitution, dosing, and safety, everything you need to research with confidence. For research reference only.

HMG stands for Human Menopausal Gonadotropin (also called menotropins). It is a blend of two pituitary hormones, follicle-stimulating hormone (FSH) and luteinizing hormone (LH), traditionally extracted and purified from the urine of postmenopausal women. It is not a synthetic peptide chain like GLP-1 analogs or growth-hormone-releasing peptides, but a naturally derived hormone preparation used clinically as a fertility medication.

Clinically, HMG is used to induce ovulation and grow multiple follicles for IVF or other assisted reproduction procedures, and in men it is used (often together with hCG) to restore or support sperm production in hypogonadotropic hypogonadism. hCG (human chorionic gonadotropin) acts like LH only and is commonly used to raise testosterone or maintain testicular size, whereas HMG's added FSH activity makes it more effective specifically for fertility/spermatogenesis restoration. Some protocols combine HMG and hCG for more complete hormonal and fertility support.

In clinical fertility use, reported doses range from about 75-150 IU daily for ovulation induction up to 150-300 IU daily for IVF stimulation, usually given for 7-12 days with monitoring. In male fertility/testosterone-support discussions, protocols in the 75 IU two to three times weekly for several months (often alongside hCG) are commonly cited. These figures come from clinical and community sources and are not a recommendation; any use should be supervised by a qualified clinician with appropriate monitoring (bloodwork, ultrasound where relevant).

HMG is typically supplied as a lyophilized (freeze-dried) powder that is reconstituted with bacteriostatic or sterile water — a common ratio cited is around 3 mL of water per vial to reach roughly 25 IU/mL, though the exact volume depends on the vial's labeled IU content. Water should be added slowly down the side of the vial and swirled gently (not shaken) to avoid damaging the protein structure. Unopened lyophilized vials are generally stored refrigerated (2-8°C), and once reconstituted, the solution should be kept refrigerated and used within the timeframe stated by the supplier, as reconstituted peptide/protein hormones degrade at room temperature.

Commonly reported effects include injection site redness or irritation, headache, mood changes, bloating, and breast tenderness. In women, ovarian hyperstimulation syndrome (OHSS) — swollen, painful ovaries with abdominal pain and bloating — is a recognized risk, along with an increased chance of multiple pregnancies. In men, effects tied to rising testosterone/estrogen levels (acne, mood changes, water retention) have been noted. Rare but serious risks reported in the literature include blood clots and ovarian torsion. This list reflects reported effects, not a complete safety profile, and is not medical advice.

HMG is an approved prescription fertility medication in many countries when prescribed and monitored by a physician for conditions like infertility or hypogonadotropic hypogonadism. It is also sold by research-chemical vendors labeled 'for laboratory/research use only.' Products sold this way are not approved for human consumption, are not quality-controlled to pharmaceutical standards, and their use outside clinical supervision is not supported by regulatory bodies. Buyers should be aware of the legal and safety distinction between a physician-prescribed pharmaceutical product and an unregulated research-use product.

Some online communities discuss using HMG (often alongside hCG) during or after anabolic steroid or TRT use to help preserve or restore testicular function and fertility, since HMG's FSH component supports spermatogenesis more directly than hCG alone. This is an off-label, non-clinical use pattern discussed in forums rather than an approved indication, and outcomes and safety in this context are not well established by controlled research.

HMG Dosage Guide, Benefits & Side Effects

HMG Dosage Guide for Hormonal & Fertility SupportHMG Dosage Calculator

What is HMG?