C-peptide vs Kisspeptin-52
Head-to-head comparison of C-peptide (Connecting peptide (C-peptide)) and Kisspeptin-52 (Kisspeptin-52 (KISS1-derived peptide fragment)) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | C-peptide | Kisspeptin-52 |
|---|---|---|
| Category | Pain Management | Sexual Health |
| Full Name | Connecting peptide (C-peptide) | Kisspeptin-52 (KISS1-derived peptide fragment) |
| Molecular Weight | 3020.3 Da | ≈5,800 Da |
| Half-Life | ~20-30 min | Minutes to ~1 hour |
| Amino Acids | 31 | 52 |
| Typical Dose | no approved analgesic dose|research-only | 0.1-3.0 nmol/kg |
| Route | IV|subQ | Intravenous/Subcutaneous |
| Purity | ≥98% | ≥98% |
| Studies Count | 46 | 120 |
| Research Status | Pre-clinical | Clinical research |
C-peptide Benefits
- ✓diabetic neuropathy research
- ✓nerve function support
- ✓possible analgesic effect
Kisspeptin-52 Benefits
- ✓stimulates GnRH signaling
- ✓supports LH/FSH release
- ✓aids ovulation research
- ✓maps reproductive-axis function
C-peptide Dosing
0.5-1.0 mg/day in research|route varies by protocol
Kisspeptin-52 Dosing
0.1-3.0 nmol/kg IV bolus|0.1-1.0 nmol/kg SC|protocol-dependent infusion
C-peptide Side Effects
- ⚠injection-site reactions
- ⚠unknown long-term safety
Kisspeptin-52 Side Effects
- ⚠flushing
- ⚠nausea
- ⚠headache
Research Overview
C-peptide
C-peptide is not an approved analgesic, but multiple studies have examined its effects on peripheral nerve blood flow and neuropathy outcomes. The strongest relevance is in diabetic neuropathic pain rather than migraine.
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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