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HCG
Sexual HealthSingleAlso known as: Human Chorionic Gonadotropin
A natural hormone produced in pregnancy, used clinically for fertility, hypogonadism, and HPG-axis restart protocols.
Half-life
33 h
Common dose
250 – 3000 IU
Dosing frequency
Twice Daily
Administration
Subcutaneous, Intramuscular
How it works
HCG mimics LH at the testicular Leydig cell receptor, triggering testosterone production. Also stimulates ovarian function in women.
Protocol notes
Typical TRT-adjunct protocols use 250–500 IU subcutaneously 2–3 times weekly. Higher doses (1000–3000 IU) are used for fertility restart. Cycle lengths vary.
Reported side effects
Estrogenic effects (aromatization), water retention, mood changes, gynecomastia at high doses, injection-site reactions.