New — Free Peptide Starter Guide (2026): 13 chapters, 34 cited studies

Get it free
ToolsCompareBPC-157 vs Retatrutide

BPC-157 vs Retatrutide

Side-by-side comparison of key properties, dosing, and research.

Recovery & Repair
BPC-157
GLP-1 / Weight Loss Agonists
Retatrutide
Summary
BPC-157 is a synthetic pentadecapeptide derived from a protective protein found in the stomach. It is one of the most extensively researched healing peptides, known for accelerating tissue repair, reducing inflammation, and protecting the gastrointestinal tract.
Retatrutide is an investigational triple receptor agonist targeting GLP-1, GIP, and glucagon receptors simultaneously. Phase 2 trials showed an unprecedented average 24% body weight reduction at 48 weeks — exceeding any approved medication to date. It is in Phase 3 trials as of 2024.
Half-Life
4–6 hours
~10–12 days
Admin Route
SubQ, IM, Oral
SubQ
Research
Typical Dose
200–500 mcg
0.5 mg → 1 mg → 2 mg → 4 mg → 8 mg → 12 mg
Frequency
Once daily
Once weekly
Key Benefits
  • Accelerates wound healing and tissue repair
  • Reduces inflammation throughout the body
  • Protects and heals the gastrointestinal tract
  • Supports tendon and ligament healing
  • Promotes bone and joint health
  • May protect organs from toxins and injury
  • Supports gut-brain axis function
  • Counteracts NSAID-induced gut damage
  • ~24% body weight reduction at 48 weeks in Phase 2 (highest dose)
  • Superior to both semaglutide and tirzepatide in early trial comparisons
  • Triple receptor mechanism addresses multiple obesity pathways
  • Significant reduction in liver fat (MASH/NAFLD indication being studied)
  • Improved cardiovascular and metabolic markers
  • Once-weekly dosing
  • Potential for greatest weight loss of any currently investigated compound
Side Effects
  • Injection site discomfort
  • Nausea (rare)
  • Headache (rare)
  • Dizziness (rare)
  • Nausea and vomiting (common during titration, similar to semaglutide/tirzepatide)
  • Diarrhea
  • Constipation
  • Heart rate increase (from glucagon receptor agonism)
  • +2 more
Stacks With