For Men · Compounded Injectable

HCG /
Gonadorelin

Keep the testes active — and fertility intact.

Subcutaneous injectables that keep the testes active — often added to testosterone therapy to help preserve sperm production and testicular size. Prescribed online after real bloodwork and reviewed by a licensed provider.

Your price depends on the dose your provider prescribes

$35/mo Most people start here

Start your online visit →

A few private questions and real bloodwork, then a licensed provider reviews your labs and goals.

100% Online Real Bloodwork Fertility Support Discreet Shipping
ForbiddenRx HCG · Gonadorelin
At a glance
Class
Gonadotropin (injectable)
Form
Subcutaneous injection
Maintains
Testicular function
Fertility
Supported
Guided by
Real bloodwork
For
Men
The basics

What is HCG / gonadorelin?

What it is
A compounded injectable gonadotropin
Made by
U.S. 503A compounding pharmacy
Formulated for
Fertility & testicular support
Two options
HCG or gonadorelin — provider-selected
How it acts
HCG mimics LH · gonadorelin prompts LH & FSH
Guided by
Real bloodwork · provider-adjusted
Prescription
Provider-reviewed · no insurance required
Shipping
Discreet, unmarked · all 50 states
Start your online visit →

HCG and gonadorelin are subcutaneous injectables that keep the testes active — HCG (human chorionic gonadotropin) mimics luteinizing hormone and signals the testes directly, while gonadorelin is a GnRH analog that prompts the pituitary to release LH and FSH, working one step higher up the same hormone axis.

They are most often added to testosterone therapy, which can otherwise quiet the body's own signal and shrink the testes over time. Guided by symptoms plus bloodwork, they help preserve sperm production and testicular size, and are also used to support fertility.

The right choice between HCG and gonadorelin depends on your labs, goals, and your provider's clinical judgment. Both may be prescribed as compounded preparations, prepared per prescription by a U.S. 503A compounding pharmacy.

Understanding the cause

Why does fertility drop on testosterone therapy?

Testosterone therapy adds testosterone from outside the body, which can signal the testes to slow down — often reducing sperm production and testicular size over time. That's a well-documented effect of TRT: the body senses plenty of testosterone in circulation and quiets its own signal to the testes, so they produce less and can shrink while therapy continues.

It usually doesn't reverse on its own

Left unaddressed, testicular suppression tends to persist for as long as you stay on testosterone alone — it's not something that self-corrects while therapy continues.

It's manageable while you stay on therapy

Adding HCG or gonadorelin keeps the testes stimulated, which is why it's a common companion to TRT for men who want to keep fertility and testicular size on the table.

Know the difference

Testosterone alone vs. enclomiphene vs. HCG / gonadorelin — what's the difference?

The short answer: testosterone alone can suppress your own production, enclomiphene raises your own testosterone through the pituitary, and HCG or gonadorelin keeps the testes directly stimulated to help protect fertility and size while you stay on therapy.

 Testosterone aloneEnclomipheneHCG / gonadorelin (Rx)
What it doesAdds testosterone from outside the bodyStimulates your own testosterone via LH and FSHKeeps the testes active to help maintain fertility and size
Effect on fertilityCan suppress sperm productionPreserves your own axisSupports fertility on testosterone therapy
CadenceWeekly / dailyDaily oralPer protocol
NeedleVariesNoYes
Guided by labsYesYesYes — provider reviews bloodwork first
Rx requiredYesYesYes

Many men on testosterone therapy add HCG or gonadorelin specifically to keep the testes active rather than idle. Which one fits — and whether it belongs alongside your current plan — is a decision your provider makes from your labs and goals.

How it works

How does HCG / gonadorelin work?

It keeps the testes active — either directly, in the case of HCG, or by prompting the pituitary, in the case of gonadorelin — so they keep producing while you stay on testosterone.

I

Signal the testes

HCG mimics luteinizing hormone (LH) and acts directly on the testes, keeping them producing rather than going idle.

II

Work up the axis

Gonadorelin is a GnRH analog that prompts the pituitary to release LH and FSH — one step higher up the same hormone axis.

III

Guided by your labs

Your provider sets and adjusts the protocol on real bloodwork, so treatment tracks your own testosterone, LH, and FSH numbers.

Who it's for

Who is HCG / gonadorelin for?

It's for men who are on or considering testosterone therapy and want to preserve their fertility or testicular size — and for men seeking fertility support.

Men on or considering TRT

Testosterone therapy can suppress fertility and shrink the testes; HCG or gonadorelin helps keep them active while you stay on treatment.

Men who want to preserve fertility

Frequently chosen to support ongoing sperm production — for men who want to conceive now or later.

Men who want to keep testicular size

By keeping the testes stimulated, these injectables help counter the shrinkage that can accompany testosterone therapy.

Men who want labs-guided care

The plan is confirmed by symptoms plus bloodwork — not by symptoms alone — and adjusted as follow-up labs come back.

When it's not the right fit

If your main goal is raising testosterone without needles, Testosterone therapy or enclomiphene may fit better — your provider can help you choose. And if you have undiagnosed symptoms or conditions that need evaluation, mention them in your visit before starting any therapy.

How to get it

How do I get HCG / gonadorelin online?

You complete a private online visit and real bloodwork, a licensed provider reviews your labs and goals, and — if appropriate — your prescription ships to your door. No insurance required, no in-person appointment, no waiting room.

Online visit + bloodwork

A few private questions, then get your testosterone, LH, FSH, and related markers tested so your provider has real numbers.

Provider review

A provider licensed in your state reviews your symptoms, labs, and fertility goals and, if appropriate, builds your HCG or gonadorelin protocol.

Discreet delivery

Shipped from a U.S. pharmacy in plain, unmarked packaging to all 50 states. Refills keep you on schedule, and you can message your care team anytime.

Pricing is shown at checkout — no insurance needed, no hidden fees. Prescription approval is not guaranteed and is subject to provider review.

Using it & safety

How do I use it, and is it safe?

You give a small subcutaneous injection on the schedule your provider sets — often several times per week — and your provider sets and adjusts the exact dose from your bloodwork. These are prescription medications that need ongoing oversight.

How to use it

Form
A small subcutaneous injection — provider-dosed, self-administered at home.
Cadence
Per your protocol, often several times per week, on the schedule your provider sets.
Starting dose
Set by your provider from your baseline testosterone, LH, and FSH labs.
Adjustments
Fine-tuned as your follow-up bloodwork shows how you respond.
Monitoring
Periodic labs track testosterone, LH, FSH, and estradiol so your protocol stays in a healthy range.
InjectablePer protocolFertility support

Safety & side effects

⚠ Provider oversight required

HCG and gonadorelin are prescription medications that require ongoing provider oversight and periodic bloodwork. Tell your provider about all conditions and medications before starting. They may be prescribed as compounded preparations.

Your provider monitors you with regular labs and watches for possible side effects, including:

  • Injection-site reactions
  • Water retention
  • Changes in estradiol
  • Mood changes
  • Gynecomastia risk if estradiol rises

Tell your provider about all conditions and medications, and seek care for any new or worsening symptoms. Your provider can adjust your protocol or pause treatment based on how your follow-up labs and symptoms track.

Compare your options

Which hormone-health option fits you?

A side-by-side look at the men's hormone-health options available through ForbiddenRx. Your provider helps you choose what's right for your labs and goals.

TreatmentWhat it isFocusFormRx required
HCG / Gonadorelin
Popular
Injectables that keep the testes activeFertility & testicular supportInjectionYes
TestosteroneTestosterone replacement therapy for low levelsLow testosteroneInjection or creamYes
EnclomipheneOral SERM that raises your own testosteroneFertility-friendly T supportOral tabletYes
AnastrozoleControls estrogen conversion in men on TRTHigh estradiol on TRTOral tabletYes
Questions, answered

HCG / gonadorelin FAQ

What is HCG / gonadorelin and how does it work?

HCG (human chorionic gonadotropin) mimics luteinizing hormone (LH) and signals the testes directly to stay active. Gonadorelin is a GnRH analog that prompts the pituitary to release LH and FSH, working one step higher up the same hormone axis. Both are subcutaneous injectables used to keep the testes producing — which is why they're used to preserve fertility and testicular function.

Why is it added to TRT?

Testosterone therapy adds testosterone from outside the body, which can signal the testes to slow down — often reducing sperm production and testicular size over time. Adding HCG or gonadorelin keeps the testes stimulated while you stay on testosterone, which is why it's a common companion to TRT. Your provider decides whether it fits your labs and goals.

Will it help preserve my fertility?

HCG and gonadorelin are frequently chosen specifically to help preserve fertility. By keeping the testes stimulated rather than idle, they support ongoing sperm production — including for men on testosterone therapy and men who want to conceive now or later. Discuss your fertility goals with your provider, who monitors your response with bloodwork.

HCG vs gonadorelin — what's the difference?

HCG mimics LH and acts directly on the testes. Gonadorelin is a GnRH analog that works one step higher — it prompts the pituitary to release LH and FSH, which then signal the testes. Both keep the testes active; the right choice depends on your labs, goals, and your provider's clinical judgment. Both may be prescribed as compounded preparations.

Do I need bloodwork first, and how is it monitored?

Yes. Hormone therapy is guided by real lab testing, not a questionnaire. Bloodwork gives your provider a baseline — including testosterone, LH, FSH, and estradiol — and guides your starting protocol; follow-up labs then track how you respond. Your provider monitors for possible side effects such as injection-site reactions, water retention, changes in estradiol, mood changes, and gynecomastia risk if estradiol rises. These are prescription medications that require ongoing provider oversight and may be prescribed as compounded preparations.

How is it prescribed and shipped?

After your online visit and bloodwork, a licensed provider reviews your information. If HCG or gonadorelin is appropriate, your prescription ships discreetly to your door in unmarked packaging, with refills to keep you on schedule. Prescription approval is not guaranteed and is subject to provider review.

Credibility you can verify

Care held to a higher standard

Licensed Providers

U.S. board-certified clinicians

503A Pharmacies

U.S.-based compounding partners

All 50 States

Nationwide telehealth coverage

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Also in hormone health

Keep the testes active, preserve your fertility

Testosterone therapy can quiet your own signal over time. Complete a quick online visit and real bloodwork, and a licensed provider takes it from there.

Start your online visit →

  • Discreet, unmarked packaging
  • Refills so you never miss a scheduled dose
  • Message your care team anytime
  • Licensed providers in all 50 states
Medically reviewed

Sources & references

Medically reviewed by ForbiddenRx Medical Affairs — Independent, licensed medical providers · Last reviewed July 2026. This page was written and is periodically reviewed for medical accuracy in line with clinical guidance followed by the independent, licensed medical providers in the ForbiddenRx network. It is provided for general educational purposes and is not a substitute for professional medical advice, diagnosis, or treatment. Always talk with a licensed provider about your individual health.

  1. U.S. Food & Drug Administration. Compounding and the FDA: Questions and Answers.
  2. The Endocrine Society. Testosterone Therapy in Men With Hypogonadism — Clinical Practice Guideline.
  3. American Society for Reproductive Medicine (ASRM). Guidance on testosterone therapy, gonadotropins, and male fertility.
  4. U.S. Pharmacopeia (USP). General Chapter <795> Pharmaceutical Compounding — Nonsterile Preparations.
For further reading

Clinical references

This page is educational and is not medical advice.