Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| 17-alpha-Estradiol | Human Chorionic Gonadotropin (hCG) | |
|---|---|---|
| Category | Hormones | Hormones |
| Standard Dose | — | — |
| Timing | — | — |
| Cycle Duration | — | — |
| Evidence Level | Preclinical | Strong |
Non-feminizing estrogen that extends lifespan in male mice via metabolic improvements. Reduces hepatic mTOR signaling, improves glucose homeostasis, and reduces inflammation without estrogenic effects on reproductive tissues.
LH receptor agonist that stimulates intratesticular testosterone production and can help preserve fertility signaling in selected male hormone protocols.
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