HGH Fragment 176-191 vs C-peptide

Head-to-head comparison of HGH Fragment 176-191 (Human Growth Hormone Fragment 176-191) and C-peptide (Connecting peptide (C-peptide)) — benefits, dosing, side effects, research data, and where to buy.

PropertyHGH Fragment 176-191C-peptide
CategoryWeight ManagementPain Management
Full NameHuman Growth Hormone Fragment 176-191Connecting peptide (C-peptide)
Molecular Weight1817.12 g/mol3020.3 Da
Half-Life~30 minutes~20-30 min
Amino Acids1631
Typical Doseno approved analgesic dose|research-only
RouteIV|subQ
Purity>98%≥98%
Studies Count4546
Research StatusActive ResearchPre-clinical

HGH Fragment 176-191 Benefits

  • Targeted fat loss, no blood sugar impact, no IGF-1 elevation, inhibits lipogenesis, stimulates lipolysis, improved body composition

C-peptide Benefits

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

HGH Fragment 176-191 Dosing

250-500 mcg subcutaneously 1-2 times daily on empty stomach. 12-16 week cycles typical in research.

C-peptide Dosing

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

HGH Fragment 176-191 Side Effects

  • Injection site irritation, headache, drowsiness. Does not affect blood sugar, insulin sensitivity, or elevate IGF-1.

C-peptide Side Effects

  • injection-site reactions
  • unknown long-term safety

Research Overview

HGH Fragment 176-191

This 16-amino-acid fragment specifically targets adipose tissue via beta-3 adrenergic receptors. Works through a GH-receptor-independent pathway, explaining selective fat-loss properties without growth-promoting effects.

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.

Ready to buy?

Find both peptides from our verified, lab-tested vendors with purity certificates and third-party testing.

Common Stacking Partners

HGH Fragment 176-191 stacks with:

AOD-9604CJC-1295Ipamorelin

C-peptide stacks with:

C-peptideConnecting peptide
fat-lossgrowth-hormone-fragmentlipolysisbody-recompositionneuropathic-paindiabetic-neuropathynerve-repair