HMG

HMG is chosen when complete spermatogenesis restoration is the goal. This typically applies to men who ran long AAS cycles, men who have been on TRT without HCG co-administration for extended periods, or men facing pre-fertility evaluation after a suppression period who find that HCG alone is not moving semen parameters adequately.

• HMG is typically prescribed in fertility contexts. Off-label self-administration follows the same injection approach as HCG.
• Standard fertility-restoration protocol: 75–150 IU HMG 3 × weekly, often combined with HCG (500–1000 IU) on alternating days.
• Course lengths for spermatogenesis restoration: typically 3–6 months, as spermatogenesis is a slow process.
• Inject subcutaneously. Supplied as lyophilized powder; reconstitute with accompanying diluent.
• Monitor estradiol because FSH activity can increase estrogen. An aromatase inhibitor may be needed.

Spermatogenesis is a 70–80 day process. Total restoration of sperm parameters after significant suppression takes 3–6 months minimum regardless of which protocol is used. The expectation should be slow, steady improvement in sperm count and motility rather than rapid recovery.

Use context

HMG is the specialist’s tool in the fertility restoration category. Most men running AAS can maintain and restore adequate function with HCG alone. HMG becomes relevant when FSH is the limiting factor, whether because suppression has been prolonged, because prior testicular damage or baseline low FSH exists, or because semen analysis after HCG-based PCT shows recovery of testosterone but not of sperm parameters.

The cost is the primary barrier. HMG is significantly more expensive than HCG and the protocol is more demanding. For men whose fertility is a serious consideration, it is worth the difference. For men running HMG without that clear indication, HCG is almost always sufficient.

Using HMG when HCG would be sufficient. Expecting meaningful semen improvements in 6–8 weeks. Not monitoring FSH-driven estrogen changes and then wondering why the protocol feels off. Stopping treatment when testosterone normalizes but before sperm parameters catch up.

Compared with HCG, HMG provides the FSH signal that HCG cannot. Compared with Clomiphene or other SERMs for PCT, HMG works directly at the gonadal level while SERMs work through the pituitary. The combination of HCG (for LH) and HMG (for FSH) is more powerful than either alone for complete spermatogenesis.