How Much Does KPV Cost in 2026?
KPV is a tripeptide (Lysine-Proline-Valine) derived from the C-terminal end of alpha-melanocyte-stimulating hormone (α-MSH). It is one of the smallest peptides in the research space — just three amino acids — but has attracted attention for its anti-inflammatory and gut-healing properties. In April 2026, the FDA removed KPV from the Category 2 503A bulk drug substances list, affecting compounding pharmacy access while research-grade supply continues.
Current KPV Prices by Supplier
As a tripeptide (only 3 amino acids), KPV is among the simpler research peptides to synthesize, which has historically kept prices accessible compared to larger compounds. However, post-reclassification supply is still settling.
| Supplier | Size | Price | Notes |
|---|---|---|---|
| Ignite Peptides Best Value | 5mg | $27.00 | ~$5.40/mg. USA-based, COA provided |
| His and Hers | 5mg | $30.00 | ~$6.00/mg. USA-based, COA provided |
| Puratek Peptides | 5mg | $31.46 | ~$6.29/mg. USA-based, COA provided |
Prices sourced from publicly available supplier listings, May 2026. Verify current pricing directly with each supplier before ordering.
What Is KPV?
KPV stands for Lysine-Proline-Valine, the single-letter amino acid code for this tripeptide's sequence. It is derived from the C-terminal portion of alpha-melanocyte-stimulating hormone (α-MSH), a naturally occurring peptide hormone that regulates pigmentation, inflammation, and other physiological processes.
The key research interest in KPV is that it appears to retain the anti-inflammatory properties of α-MSH without triggering the melanogenic (tanning/pigmentation) effects of the parent molecule. This is because the melanogenic activity of α-MSH is primarily in its N-terminal portion, while the anti-inflammatory activity maps largely to the C-terminal fragment (which includes KPV).
KPV's small size (3 amino acids) is also notable from a research perspective — it makes the molecule relatively stable, easier to synthesize, and potentially amenable to non-injection delivery routes in research settings.
What Researchers Study KPV For
- Gut inflammation (IBD models) — The most active area of KPV research involves inflammatory bowel disease. Studies have examined KPV's ability to reduce intestinal inflammation in colitis models, with some work exploring oral and encapsulated delivery formulations.
- Wound healing and skin repair — Research has examined KPV's anti-inflammatory effects in skin wound models, potentially including applications in dermatological conditions such as psoriasis.
- Melanocortin receptor modulation — KPV binds to melanocortin receptors (particularly MC1R and MC3R), which are involved in immune regulation. Understanding this interaction is an active area of basic research.
- Systemic anti-inflammatory effects — Some studies have examined broader anti-inflammatory effects mediated through NF-κB pathway modulation.
KPV and the April 2026 FDA Reclassification
KPV was removed from the FDA's Category 2 503A bulk drug substances list on April 23, 2026, along with 11 other peptides. The practical impact is that compounding pharmacies (503A) can no longer prepare KPV for patients. Research-grade procurement from specialist suppliers is not directly affected.
The July 2026 PCAC meeting represents an opportunity for the research and medical community to submit additional clinical evidence that could support a pathway back to the 503A list or toward Category 1 status. See the full FDA Peptide Reclassification 2026 guide for the complete regulatory picture.
Notable Research Suppliers (2026)
Ignite Peptides
His and Hers
Puratek Peptides
What to Look for in a KPV Supplier
- Third-party COAs — Even for a simple tripeptide, independent HPLC purity testing (≥98%) from a named lab is essential.
- Sequence confirmation — A reputable supplier should be able to confirm the Lys-Pro-Val sequence via mass spectrometry or equivalent testing.
- Lyophilized form — KPV should be supplied as freeze-dried powder, not pre-dissolved solution.
- Appropriate storage guidance — KPV should be stored at −20°C for long-term stability.
Frequently Asked Questions
How much does KPV cost?
Pre-reclassification, KPV 5mg vials ranged from approximately $27 to $65 depending on the supplier. Being a simple tripeptide, it has historically been among the more accessible research peptides on a per-milligram basis. Post-April 2026 pricing is being tracked actively — sign up for an alert below.
What is the difference between KPV and alpha-MSH?
Alpha-MSH (α-MSH) is a 13-amino-acid peptide hormone with multiple biological functions including pigmentation control, appetite regulation, and anti-inflammatory signaling. KPV is just the last 3 amino acids of α-MSH. Research suggests KPV retains the anti-inflammatory activity associated with α-MSH's C-terminus while lacking the melanogenic (pigmentation-inducing) effects associated with the N-terminal portion.
Can KPV be taken orally in research settings?
KPV's small size (3 amino acids) makes it more resistant to digestive degradation than larger peptides, and some preclinical research has explored oral and nanoparticle delivery formulations. However, this remains an area of active investigation with no established human data. All KPV research to date is preclinical.
How should KPV be stored?
Lyophilized KPV powder should be stored at −20°C for long-term stability. Reconstituted KPV (if used in laboratory settings) should be kept at 4°C and used within 2–4 weeks. Avoid repeated freeze-thaw cycles to maintain stability.
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