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