Compounds / Hormonal / HCG

HCG

Human Chorionic Gonadotropin (Glycoprotein Hormone — LH Analog)
HormonalFDA ApprovedFDA: FDA-APPROVED (hypogonadism, fertility...WADA: PROHIBITED — Category S2...

Overview

FDA-approved for multiple indications. Commonly used off-label to maintain testicular function during TRT. Decades of human clinical data.

Mechanism of Action

LH analog. Binds LH/CG receptor (LHCGR) on Leydig cells → testosterone production. Stimulates Sertoli cells for spermatogenesis. Maintains testicular size and intratesticular testosterone during exogenous androgen use.

Molecular Profile

Molecular weight
36,700 Da
CAS number
9002-61-3
Length
237 amino acids

Key Research Findings

Testicular testosterone; spermatogenesis maintenance; HPG axis support; FDA-approved; 60-day reconstituted stability.

Published Research

JCEM
Liu PY et al. HCG for fertility and hypogonadism: clinical pharmacology
View source

Related Hormonal Compounds

GonadorelinKisspeptinOxytocinHMGACTH 1-39Triptorelin Acetate
Clinical Guidance

Research data is not a treatment plan. If you are considering HCG, the questions that matter are whether it suits your history, your labs and your goals. That is a conversation with a licensed physician, not a lookup.

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Running HCG? Log doses and track your cycle.

Interactive tools for this compound:

Reconstitution calculator  ·  Full deep dive  ·  Peptide fundamentals