C-peptide vs Ipamorelin

Head-to-head comparison of C-peptide (Connecting peptide (C-peptide)) and Ipamorelin (Growth Hormone Secretagogue) — benefits, dosing, side effects, research data, and where to buy.

Research Score

PropertyC-peptideIpamorelin
CategoryPain ManagementPerformance
Full NameConnecting peptide (C-peptide)Growth Hormone Secretagogue
Molecular Weight3020.3 Da711.85 Da
Half-Life~20-30 min~2 hours
Amino Acids315
Typical Doseno approved analgesic dose|research-only200-300 mcg
RouteIV|subQSC
Purity≥98%
Studies Count46156
Research StatusPre-clinicalClinical Trials

C-peptide Benefits

  • diabetic neuropathy research
  • nerve function support
  • possible analgesic effect

Ipamorelin Benefits

  • Stimulates natural GH release
  • Minimal cortisol/prolactin increase
  • Improved body composition
  • Enhanced recovery and sleep quality
  • Anti-aging effects

C-peptide Dosing

0.5-1.0 mg/day in research|route varies by protocol

Ipamorelin Dosing

Standard: 200-300 mcg SC 2-3 times daily|Pre-bed: 200 mcg SC 30 min before sleep|Combined: 100-200 mcg with CJC-1295 2-3x daily

C-peptide Side Effects

  • injection-site reactions
  • unknown long-term safety

Ipamorelin Side Effects

  • Common (Mild): Temporary tingling, water retention, increased appetite
  • Rare: Headache, lightheadedness
  • Very Well Tolerated overall

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.

Ipamorelin

Ipamorelin has moderate clinical evidence. Phase II trials demonstrate selective GH release. Generally regarded as one of the safest GH secretagogues with minimal side effect profile.

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Common Stacking Partners

C-peptide stacks with:

C-peptideConnecting peptide

Ipamorelin stacks with:

CJC-1295GHRP-6BPC-157
neuropathic-paindiabetic-neuropathynerve-repairPerformanceGH ReleaseAnti-agingRecovery