yes i take peptides · shopping companion

KPV

Lysine-Proline-Valine

Category · For RecoveryStatus · RUOCitations · 36

The verdict

Depends — narrow use case for stubborn low-grade gut inflammation that has resisted the obvious things, never as a substitute for real IBD treatment.

By source — cost, legality, risk

Brand
Not available
None — no FDA approval
No FDA-approved KPV exists.
Compounded 503A pharmacy
$80–$200/mo where still sold
Rx · status contested post Dec 2024
Mid. Compounders shipping under contested legal interpretations.
RUO research peptide
$25–$70/mo
Sold 'for research only'
Highest. The dominant supply. KPV is small (tripeptide) and cheap to synthesize.
Gray-market raw
~$10/mo
Unregulated overseas import
Crypto/Wise pay, no published COA; minimum order is one box of 10×10mg.

Stop signals · abort if

worsening GI symptoms (KPV is not a substitute for treating an IBD flare with the standard tools)
new skin pigmentation changes (melanocortin pathway, theoretical)
allergic reaction
any persistent new symptom

Sources · top 5 of 36

01Zhang L, et al. KPV and RAPA Self-Assembled into Carrier-Free Nanodrugs for Vascular Calcification Therapy. Advanced healthcare materials. 2024;13(32):e2402320. PMID: 39252648.
02Pawar K, et al. Transdermal Iontophoretic Delivery of Lysine-Proline-Valine (KPV) Peptide Across Microporated Human Skin. Journal of pharmaceutical sciences. 2017;106(7):1814-1820. PMID: 28343991.
03Dalmasso G, et al. PepT1-mediated tripeptide KPV uptake reduces intestinal inflammation. Gastroenterology. 2008;134(1):166-78. PMID: 18061177.
04Zeng K, et al. NLRP3 autophagic degradation disruption in melanocytes contributes to vitiligo development. Cell death and differentiation. 2026;33(2):343-357. PMID: 40935835.
05Elliott RJ, et al. alpha-Melanocyte-stimulating hormone, MSH 11-13 KPV and adrenocorticotropic hormone signalling in human keratinocyte cells. The Journal of investigative dermatology. 2004;122(4):1010-9. PMID: 15102092.