Kisspeptin-52 vs Lutropin alfa
Head-to-head comparison of Kisspeptin-52 (Kisspeptin-52 (KISS1-derived peptide fragment)) and Lutropin alfa (Recombinant Human Luteinizing Hormone Alfa) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Kisspeptin-52 | Lutropin alfa |
|---|---|---|
| Category | Sexual Health | Sexual Health |
| Full Name | Kisspeptin-52 (KISS1-derived peptide fragment) | Recombinant Human Luteinizing Hormone Alfa |
| Molecular Weight | ≈5,800 Da | 30,000 Da |
| Half-Life | Minutes to ~1 hour | ~10-12 hours |
| Amino Acids | 52 | N/A |
| Typical Dose | 0.1-3.0 nmol/kg | 75-150 IU per dose |
| Route | Intravenous/Subcutaneous | Subcutaneous/Intramuscular |
| Purity | ≥98% | ≥98% |
| Studies Count | 120 | 420 |
| Research Status | Clinical research | Clinical |
Kisspeptin-52 Benefits
- ✓stimulates GnRH signaling
- ✓supports LH/FSH release
- ✓aids ovulation research
- ✓maps reproductive-axis function
Lutropin alfa Benefits
- ✓stimulates Leydig cells
- ✓raises endogenous testosterone
- ✓supports testicular steroidogenesis
- ✓pairs with FSH for fertility
Kisspeptin-52 Dosing
0.1-3.0 nmol/kg IV bolus|0.1-1.0 nmol/kg SC|protocol-dependent infusion
Lutropin alfa Dosing
75-150 IU SC/IM 2-3x weekly|adjust to testosterone response|combine with FSH when spermatogenesis support is needed
Kisspeptin-52 Side Effects
- ⚠flushing
- ⚠nausea
- ⚠headache
Lutropin alfa Side Effects
- ⚠injection-site reactions
- ⚠headache
- ⚠hormonal swings
Research Overview
Kisspeptin-52
Human and animal studies show kisspeptin-52 can acutely increase gonadotropin secretion and activate the hypothalamic-pituitary-gonadal axis. It has been explored in fertility research and assisted-reproduction settings as a way to trigger endogenous reproductive hormone release.
Lutropin alfa
Lutropin alfa has been evaluated in fertility protocols to restore LH signaling and endogenous testosterone production. It is a direct research/clinical analogue for men with low gonadotropin drive.
Ready to buy?
Find both peptides from our verified, lab-tested vendors with purity certificates and third-party testing.