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