HCG Protocol
Dosing & Research
Last Updated: April 22, 2026
Also known as: Human Chorionic Gonadotropin, Pregnyl, Ovidrel
Testosterone stimulation, Fertility and ovulation induction, Leydig cell function studies, Corpus luteum maintenance
Half-Life
Glycoprotein Hormone Structurally Similar To Lh. Binds Lh Receptors On Leydig And Granulosa Cells For Steroidogenesis.
Administration
Subcutaneous
Frequency
Variable
How It Works
- Used in reproductive hormone research. Typical cycles: 3–4 weeks on with breaks based on recovery markers. Conversion: 1 IU HCG ≈ 0.017 mcg.
- Testosterone stimulation
- Fertility and ovulation induction
- Leydig cell function studies
- Corpus luteum maintenance
Dosing Structure
Dose
1000–5000 IU per injection (approximately 17–85 mcg)
Frequency
Variable
Example Protocols
Dose: 1000–5000 IU per injection (approximately 17–85 mcg)
Frequency: Variable
Duration: 24–36 Hours
Off Period: Not listed
Research & Studies
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