C-peptide vs Arginine Vasopressin
Head-to-head comparison of C-peptide (Connecting peptide (C-peptide)) and Arginine Vasopressin (8-Arginine Vasopressin) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | C-peptide | Arginine Vasopressin |
|---|---|---|
| Category | Pain Management | Cognitive Enhancement |
| Full Name | Connecting peptide (C-peptide) | 8-Arginine Vasopressin |
| Molecular Weight | 3020.3 Da | 1084.23 Da |
| Half-Life | ~20-30 min | 10-20 minutes |
| Amino Acids | 31 | 9 |
| Typical Dose | no approved analgesic dose|research-only | 10-40 IU intranasal research range |
| Route | IV|subQ | Intranasal/Subcutaneous |
| Purity | ≥98% | ≥98% |
| Studies Count | 46 | 100 |
| Research Status | Pre-clinical | Clinical |
C-peptide Benefits
- ✓diabetic neuropathy research
- ✓nerve function support
- ✓possible analgesic effect
Arginine Vasopressin Benefits
- ✓memory consolidation
- ✓recall support
- ✓arousal-linked learning
- ✓social cognition
C-peptide Dosing
0.5-1.0 mg/day in research|route varies by protocol
Arginine Vasopressin Dosing
intranasal research dosing|10-40 IU per dose in studies|single or repeated administration
C-peptide Side Effects
- ⚠injection-site reactions
- ⚠unknown long-term safety
Arginine Vasopressin Side Effects
- ⚠blood pressure elevation
- ⚠headache
- ⚠hyponatremia
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.
Arginine Vasopressin
Animal and human studies indicate vasopressin can modulate hippocampal and limbic circuits involved in learning and memory. The effect size is context dependent, and results vary by dose, route, and baseline cognitive state.
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