C-peptide vs CJC-1295
Head-to-head comparison of C-peptide (Connecting peptide (C-peptide)) and CJC-1295 (Growth Hormone Releasing Hormone Analog) — benefits, dosing, side effects, research data, and where to buy.
| Property | C-peptide | CJC-1295 |
|---|---|---|
| Category | Pain Management | Performance |
| Full Name | Connecting peptide (C-peptide) | Growth Hormone Releasing Hormone Analog |
| Molecular Weight | 3020.3 Da | 3,367.97 Da |
| Half-Life | ~20-30 min | ~6-8 days (DAC) |
| Amino Acids | 31 | 30 |
| Typical Dose | no approved analgesic dose|research-only | 1-2 mg/week |
| Route | IV|subQ | SC |
| Purity | ≥98% | — |
| Studies Count | 46 | 167 |
| Research Status | Pre-clinical | Clinical Trials |
C-peptide Benefits
- ✓diabetic neuropathy research
- ✓nerve function support
- ✓possible analgesic effect
CJC-1295 Benefits
- ✓Sustained GH release over days
- ✓Improved body composition
- ✓Enhanced deep sleep quality
- ✓Accelerated recovery from training
- ✓Increased protein synthesis
C-peptide Dosing
0.5-1.0 mg/day in research|route varies by protocol
CJC-1295 Dosing
Without DAC: 100-200 mcg SC 2-3 times daily|With DAC: 1-2 mg SC once or twice weekly|Combined with Ipamorelin: 100 mcg each, 2-3x daily
C-peptide Side Effects
- ⚠injection-site reactions
- ⚠unknown long-term safety
CJC-1295 Side Effects
- ⚠Common (Mild): Water retention, tingling/numbness, flushing
- ⚠Moderate: Joint stiffness, carpal tunnel-like symptoms
- ⚠Rare: Elevated blood sugar (transient)
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.
CJC-1295
CJC-1295 has good pre-clinical and early clinical data. The DAC variant shows sustained GH elevation for days. Often combined with GHRPs for synergistic GH release.
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