Which peptides are used for healing?
The peptides most promoted for healing injuries are BPC-157 and TB-500, often combined as the Wolverine stack. Others include copper peptide GHK-Cu for skin, LL-37 for wounds and KPV for inflammation.
Peptides for healing compared
| Peptide | Promoted for | Best human evidence | Status |
|---|---|---|---|
| BPC-157 | Tendons, muscles, gut | Three tiny pilot studies | Not approved |
| TB-500 | Muscles, tendons, wounds | None published | Not approved |
| GHK-Cu | Skin, wounds | Small skin-cream studies | Cosmetic ingredient; injections untested |
| LL-37 | Chronic wounds | Leg ulcer trials, mixed results | Not approved |
| KPV | Gut and skin inflammation | None | Not approved |
Do peptides for healing work in people?
The honest answer is that we don’t know for injuries. The strongest human evidence is for wound creams, like LL-37 for leg ulcers, and even there a larger trial found no overall benefit.
BPC-157 and TB-500 have impressive animal results, but a 2025 review of BPC-157 concluded it shouldn’t be used clinically until proper human trials are done.
Why don’t animal results always carry over?
Rats heal differently from people, injuries in studies are created in controlled ways, and doses and routes don’t translate directly. Many treatments that work in animals fail in human trials, which is why approval requires human evidence.
What are the risks of healing peptides?
Their side effects in people are largely unknown, and products sold online aren’t checked for purity, strength or sterility. Researchers have raised theoretical concerns that peptides promoting blood vessel growth could matter for people with cancer.
What actually helps injuries heal?
For most tendon, muscle and ligament injuries, the best evidence is for relative rest, progressive physical therapy and loading, and time. For chronic wounds, proper wound care, treating the cause (like poor circulation or diabetes) and specialist care matter most.
Talk with a doctor or physical therapist before trying an unapproved peptide for an injury.