C-peptide vs Buserelin

Head-to-head comparison of C-peptide (Connecting peptide (C-peptide)) and Buserelin (Buserelin acetate) — benefits, dosing, side effects, research data, and where to buy.

Research Score

PropertyC-peptideBuserelin
CategoryPain ManagementSexual Health
Full NameConnecting peptide (C-peptide)Buserelin acetate
Molecular Weight3020.3 Da1239.39 Da
Half-Life~20-30 min~50-80 minutes
Amino Acids319
Typical Doseno approved analgesic dose|research-only200 mcg intranasal 3x daily|0.2-0.5 mg SC daily|depot per protocol
RouteIV|subQIntranasal/Subcutaneous
Purity≥98%≥98%
Studies Count46450
Research StatusPre-clinicalClinical

C-peptide Benefits

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

Buserelin Benefits

  • pituitary down-regulation
  • cycle synchronization
  • ovarian stimulation control
  • fertility protocol timing

C-peptide Dosing

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

Buserelin Dosing

200 mcg intranasal 3x daily|0.2-0.5 mg SC daily|depot injection per protocol

C-peptide Side Effects

  • injection-site reactions
  • unknown long-term safety

Buserelin Side Effects

  • hot flashes
  • headache
  • initial LH/FSH flare

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.

Buserelin

Buserelin has been studied extensively as a GnRH agonist in IVF down-regulation and other reproductive-endocrine protocols. Its use helped establish modern cycle-control approaches in assisted reproduction.

Ready to buy?

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

Common Stacking Partners

C-peptide stacks with:

C-peptideConnecting peptide

Buserelin stacks with:

FSHhCG
neuropathic-paindiabetic-neuropathynerve-repairGnRH-agonistfertilityivf