Kisspeptin-52 vs Cetrorelix
Head-to-head comparison of Kisspeptin-52 (Kisspeptin-52 (KISS1-derived peptide fragment)) and Cetrorelix (Cetrorelix acetate) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Kisspeptin-52 | Cetrorelix |
|---|---|---|
| Category | Sexual Health | Sexual Health |
| Full Name | Kisspeptin-52 (KISS1-derived peptide fragment) | Cetrorelix acetate |
| Molecular Weight | ≈5,800 Da | 1431.06 Da |
| Half-Life | Minutes to ~1 hour | ~30 hours |
| Amino Acids | 52 | 10 |
| Typical Dose | 0.1-3.0 nmol/kg | 0.25 mg SC daily |
| Route | Intravenous/Subcutaneous | Subcutaneous |
| Purity | ≥98% | ≥98% |
| Studies Count | 120 | 300 |
| Research Status | Clinical research | Clinical |
Kisspeptin-52 Benefits
- ✓stimulates GnRH signaling
- ✓supports LH/FSH release
- ✓aids ovulation research
- ✓maps reproductive-axis function
Cetrorelix Benefits
- ✓prevents premature ovulation
- ✓supports IVF cycle control
- ✓blocks LH surge
- ✓short-acting pituitary suppression
Kisspeptin-52 Dosing
0.1-3.0 nmol/kg IV bolus|0.1-1.0 nmol/kg SC|protocol-dependent infusion
Cetrorelix Dosing
0.25 mg SC daily|start on stimulation day 5-6|protocol-dependent antagonist cycle
Kisspeptin-52 Side Effects
- ⚠flushing
- ⚠nausea
- ⚠headache
Cetrorelix Side Effects
- ⚠injection-site reactions
- ⚠headache
- ⚠nausea
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.
Cetrorelix
Cetrorelix is a cornerstone GnRH antagonist in assisted reproduction, with a fast onset and reversible suppression of LH. Trials show it improves cycle management by reducing premature ovulation during stimulation.
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