Kisspeptin-10 (HPG Axis) vs Testosterone Cypionate
A side-by-side research comparison of Kisspeptin-10 (HPG Axis) and Testosterone Cypionate across mechanism, dosing, half-life, benefits, side effects and research status.
Comparison table
| Attribute | Kisspeptin-10 (HPG Axis) | Testosterone Cypionate |
|---|---|---|
| Full name | Kisspeptin-10 (Metastin 45-54) | Testosterone Cypionate (Depo-Testosterone) |
| Category | Hormone Replacement | Hormone Replacement |
| Status | Research compound | FDA Approved (Schedule III) |
| Mechanism | Binds KISS1R (GPR54) receptors on GnRH neurons in the hypothalamus, triggering pulsatile GnRH release. This cascades to LH/FSH secretion from the pituitary, maintaining the natural feedback loop. | Exogenous testosterone binds androgen receptors in muscle, bone, brain, and reproductive tissues. The cypionate ester provides slow release from the injection depot, maintaining physiologic levels between doses. |
| Molecular weight | 1302.5 Da | 412.61 Da |
| Half-life | ~28 minutes (IV); ~4 hours (SubQ) | ~8 days |
| Bioavailability | ~90% (subcutaneous) | ~100% (intramuscular) |
| Typical dose | 100-400 mcg | 100-200 mg |
| Frequency | 1-2x daily | Weekly or split biweekly |
| Route | Subcutaneous injection | Intramuscular or subcutaneous injection |
Kisspeptin-10 (HPG Axis) reported benefits
- Natural testosterone restoration
- Preserved HPG axis function
- Enhanced libido
- LH/FSH stimulation
- Potential fertility support
- No testicular suppression
Testosterone Cypionate reported benefits
- Restored libido and sexual function
- Increased lean muscle mass
- Improved bone density
- Enhanced mood and cognitive clarity
- Reduced visceral fat
- Improved energy and motivation
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Research and educational reference only. Not medical advice.