Healing & repair
KPV
A three-amino-acid fragment of alpha-MSH promoted for gut and skin inflammation. Anti-inflammatory in cells and animals; there are no human trials at all.
What it is
KPV is a tripeptide (lysine-proline-valine) that forms the tail end of alpha-melanocyte-stimulating hormone. It is sold as a research chemical in oral, topical and injectable forms. It is not an approved medicine anywhere, has no established human dose, and all of the published data come from cell cultures and animal models.
How it works
- 1
In laboratory studies it reduces activation of NF-κB, a master switch for inflammatory signalling.
- 2
It appears to interact with melanocortin receptors, particularly MC1 and MC3, which are involved in resolving inflammation.
- 3
In intestinal cell models it strengthens barrier function and reduces secretion of inflammatory cytokines.
- 4
Because it is only three amino acids long it survives digestion better than larger peptides, which is the rationale for oral use — but that rationale has not been tested in people.
What it's studied for
Reported and studied effects
- Reduced colon inflammation scores in mouse colitis models
- Lower cytokine release in intestinal cell cultures
- Improved barrier integrity in laboratory models
- No human pharmacokinetic or efficacy data have been published
Research protocol notes
Research context onlyResearch context only — no approved human protocol exists. Animal studies used oral or injected doses in the milligram-per-kilogram range over days to weeks. Doses circulating online come from forum discussion, not from clinical research.
These figures are described so you can understand what researchers did. They are not a dose, a schedule, or a suggestion — and they are not a substitute for a doctor.
Possible side effects and contraindications
Safety profile
Possible side effects
- No human safety data, so the true side-effect profile is unknown
- Gastrointestinal upset reported anecdotally
- Injection-site irritation with injectable forms
- Activation of melanocortin pathways could in theory affect pigmentation
- Unregulated products carry a real risk of contamination or mislabelling
Contraindications and cautions
- Not established
- Pregnancy, breastfeeding and childhood should be treated as unknown
- Any history of melanoma or pigmented lesions warrants caution with melanocortin-active compounds
- Competitive athletes should check current anti-doping rules
A side-effect list is never complete, and these are not the only situations that warrant caution. Anything unexpected, or anything you are unsure about, should be discussed with a doctor before use.
Evidence assessment
There are no controlled human studies. The evidence base is entirely laboratory and animal work plus online self-report, which cannot separate a real effect from expectation.
References
- 01KPV tripeptide anti-inflammatory effects — PubMed literature search
- 02KPV and intestinal inflammation models — PubMed literature search
References link to published literature, regulator pages or literature indexes. Where a link points to a search, it collects the peer-reviewed work on that molecule rather than a single study.
Related
Related peptides
Other entries in Healing & repair.
Healing & repair
BPC-157
A synthetic fragment of a gastric protein, widely promoted online for injury recovery. Human trial evidence is very thin; almost all data comes from animal studies.
Healing & repair
KLOW blend (TB-500, BPC-157, KPV, GHK-Cu)
A four-peptide repair and skin stack: animal data on each part, nothing at all on the combination.
Healing & repair
TB-500
A synthetic fragment of thymosin beta-4, studied in animals for wound healing and cell migration. No approved status and no robust human trials.