HCG for Bodybuilders: Muscle Retention and Hormonal Balance

[Daniel Knowsley]

Human Chorionic Gonadotropin (HCG) is used by bodybuilders to maintain natural testosterone production while on or after a steroid cycle.
It helps prevent testicular atrophy, supports muscle retention, and balances hormones during PCT (Post Cycle Therapy).
Typical doses range from 250-500 IU twice a week on cycle or 1,000-2,000 IU per week during PCT. Always combine with an AI (Aromatase Inhibitor) if needed to manage estrogen levels.

[Nick Wallbank]

Hi, I’m currently on TRT, daily dosing Testex 0.15ml and 0.8 HCG Zivafert 5000 daily dose.
I’d like to double the dose of the Testex but I’m worried about my estrogen levels.
First of all, what dose of Zivafert would I take on 0.3 of Testex? And do I need to be taking anything else?

[Daniel Knowsley]

If you increase Testex to 0.3ml daily:
Zivafert (HCG): Stick to 250–500 IU 2–3x/week (no need for daily unless fertility-focused).
Estrogen control: You may need an AI like Arimidex 0.25mg 1–2x/week, but only if estradiol rises—bloodwork is key.

[Nick Wallbank]

Thank you for the advice. Quick question – 250-500…what is that in ml per week?

[Daniel Knowsley]

250–500 IU HCG (if mixed with 1 ml bac water) = 0.05–0.1 ml per dose
At 2–3x/week = 0.1–0.3 ml total per week.

[Nick Wallbank]

Great, thank you fir the advice 👍

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