SS-31 vs BPC-157: mitochondrial protection vs broad tissue repair — different repair strategies compared. Here's a neutral, sourced side-by-side — no hype, every claim links to its evidence.
SS-31 is a man-made lab chemical also called Elamipretide. It is a tiny protein piece, called a peptide, that is made to go into the power plants inside cells.
Also: Body Protection Compound, PL 14736
BPC-157 is a man-made copy of a tiny piece of protein found in the stomach. It is a short chain of building blocks called amino acids.
| SS-31 | BPC-157 | |
|---|---|---|
| Research status | Approved | Preclinical |
| Highest-tier evidence | Peer-reviewed study | Peer-reviewed study |
| Research citations | 3 | 44 |
| Dosing routes | SubQ | SubQ |
| Receptor targets | — | Growth Hormone Receptor, VEGF |
| Half-life | — | No established half-life in humans; preclinical data only. |
| Known side effects | 4 | 34 |
Top preclinical research areas — cited studies for each.
Reported routines — research only, not medical advice.
Not yet documented for SS-31 — being compiled.
Key studies — click through to verify each on PubMed.
3 sourced studies
Mitochondria-targeted peptide SS-31 attenuates renal injury via an antioxidant effect in diabetic nephropathy.
The mitochondrial-targeted peptide, SS-31, improves glomerular architecture in mice of advanced age.
Elamipretide (SS-31) treatment attenuates age-associated post-translational modifications of heart proteins.
44 sourced studies
Gastric pentadecapeptide body protection compound BPC 157 and its role in accelerating musculoskeletal soft tissue healing.
Pentadecapeptide BPC 157 enhances the growth hormone receptor expression in tendon fibroblasts
Bpc-157 | C62H98N16O22 | CID 9941957 - PubChem
Novel Cytoprotective Mediator, Stable Gastric Pentadecapeptide BPC 157. Vascular Recruitment and Gastrointestinal Tract Healing.
Decision Guide
Neither is a “winner” — they suit different goals. Compare the documented benefits and evidence above against what you’re actually trying to achieve, note the research status (approved vs research-stage), and read each full guide before deciding. Many people also stack peptides rather than pick one.
Source SS-31
Source BPC-157
The most-used peptide combinations, what the research actually says, and where to buy — one page, one email.
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