HCG
Human Chorionic Gonadotropin. Mimics LH to maintain testicular function.
Overview
Human Chorionic Gonadotropin. Mimics LH to maintain testicular function.
Stimulates testosterone production (mimics LH), prevents testicular atrophy on cycle, can elevate estradiol, does not restore pituitary function
Compound Guide
Mechanism: Glycoprotein hormone that mimics LH at the Leydig cell receptor, stimulating intratesticular testosterone production. Does NOT restore pituitary function -- works directly on the testes.
Dosage:
- On-cycle (maintenance): 250-500 IU 2-3x/week (e.g. 250 IU Mon/Wed/Fri)
- Pre-PCT (blast): 500-1000 IU EOD for 2 weeks before starting SERMs
- Fertility support: 500-1500 IU 2-3x/week (under medical supervision)
Administration:
- Subcutaneous (SubQ) injection: 29-31g insulin needle, abdomen or love handles
- Reconstitute with bacteriostatic water; store reconstituted in fridge (stable ~30-60 days)
Key Notes:
- Primary purpose on-cycle: maintain testicular size and function for easier PCT recovery
- Can elevate estradiol significantly -- monitor for E2 symptoms, especially at higher doses
- Do NOT run HCG during PCT (it suppresses LH at the pituitary level while stimulating the testes)
- Standard protocol: use on-cycle, stop when starting SERMs
- Desensitisation risk with chronic high doses (>1500 IU multiple times per week) -- keep doses moderate
- Critical for athletes who want to preserve fertility on cycle
Usage History
Markers to Monitor
Marker Interactions
Frequently Asked Questions
Related Articles
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Quick Reference
Category
Peptide
Half-Life
24-36 hours
Detection Time
N/A