Kisspeptin-52 vs hCG
Head-to-head comparison of Kisspeptin-52 (Kisspeptin-52 (KISS1-derived peptide fragment)) and hCG (Human Chorionic Gonadotropin) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Kisspeptin-52 | hCG |
|---|---|---|
| Category | Sexual Health | Sexual Health |
| Full Name | Kisspeptin-52 (KISS1-derived peptide fragment) | Human Chorionic Gonadotropin |
| Molecular Weight | ≈5,800 Da | 36,700 Da |
| Half-Life | Minutes to ~1 hour | ~24-36 hours |
| Amino Acids | 52 | N/A |
| Typical Dose | 0.1-3.0 nmol/kg | 500-2,000 IU per dose |
| Route | Intravenous/Subcutaneous | Subcutaneous/Intramuscular |
| Purity | ≥98% | ≥98% |
| Studies Count | 120 | 2000 |
| Research Status | Clinical research | Clinical |
Kisspeptin-52 Benefits
- ✓stimulates GnRH signaling
- ✓supports LH/FSH release
- ✓aids ovulation research
- ✓maps reproductive-axis function
hCG Benefits
- ✓stimulates endogenous testosterone
- ✓supports spermatogenesis
- ✓preserves testicular volume
- ✓may improve fertility markers
Kisspeptin-52 Dosing
0.1-3.0 nmol/kg IV bolus|0.1-1.0 nmol/kg SC|protocol-dependent infusion
hCG Dosing
500-2,000 IU SC/IM 2-3x weekly|1,500-3,000 IU weekly in fertility protocols|titrate to testosterone, estradiol, and semen parameters
Kisspeptin-52 Side Effects
- ⚠flushing
- ⚠nausea
- ⚠headache
hCG Side Effects
- ⚠acne
- ⚠gynecomastia
- ⚠water retention
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.
hCG
Human studies show hCG can raise intratesticular and serum testosterone by mimicking luteinizing hormone at the testis. It is commonly studied in male hypogonadism and fertility-preservation settings.
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