KPV Peptide 20mg: Product Details, Quality and Ordering
KPV peptide research is interesting because the molecule is only three amino acids long, yet preclinical studies have examined it in inflammatory signalling, intestinal models, epithelial biology, and antimicrobial research. KPV is a useful example of why peptide research cannot be judged by molecular size alone.
At Peptide King, our KPV 20mg is listed as a lyophilized research material containing the tripeptide Lys-Pro-Val. The current page states a 20mg nominal quantity, molecular weight of 342.44 g/mol, ≥98% HPLC-verified purity, and storage at -20°C protected from light. It is supplied exclusively for in-vitro laboratory research.
This guide explains where KPV comes from, what researchers have studied, and which quality details deserve attention before laboratory use.
What Is KPV Peptide?
KPV is the tripeptide sequence lysine-proline-valine. It corresponds to the C-terminal 11-13 fragment of alpha-melanocyte-stimulating hormone, usually abbreviated alpha-MSH.
KPV Is a Very Small Fragment of a Larger Signalling Peptide
Alpha-MSH is a larger peptide involved in several biological pathways. KPV contains only three residues from its C-terminal end.
Laboratory studies suggest this small sequence can retain some anti-inflammatory activity associated with the parent peptide without reproducing every property of alpha-MSH.
The Peptide King page lists the free-base molecular weight as 342.44 g/mol, which is consistent with the approximately 342.43 g/mol value discussed in the FDA’s 2026 KPV review.
The Exact Chemical Form Still Matters
KPV free base and KPV acetate are not chemically identical materials.
The FDA highlighted inconsistent commercial naming of KPV free base and acetate and noted that the forms have different physicochemical characteristics.
For research procurement, the product name, molecular formula, molecular weight, and analytical documentation should agree.
What Has KPV Research Actually Studied?
Most KPV research is preclinical. That distinction should remain visible whenever the molecule is discussed.
Intestinal Research Has Examined the PepT1 Transporter
One well-known KPV study examined the peptide transporter PepT1.
Researchers reported KPV transport in intestinal epithelial and immune-cell models and investigated experimental colitis systems. The work used cells and mice rather than human clinical treatment.
This work helped make intestinal inflammation one of the recurring areas associated with KPV research.
Inflammatory Signalling Is Another Major Research Area
KPV and alpha-MSH-derived peptides have also been studied in pathways involving NF-kB and inflammatory signalling.
A change observed in a cell or animal model is a research finding, not proof of a safe or effective human therapy.
Antimicrobial Activity Has Been Explored in Laboratory Models
Research on alpha-MSH and related fragments has examined antimicrobial effects against organisms including Staphylococcus aureus and Candida albicans.
How Strong Is the Human Evidence for KPV?
Human evidence is where the KPV story becomes much more limited.
FDA Found No Clinical Studies or Human Exposure Data
In its 2026 evaluation of KPV-related bulk drug substances, the FDA stated that it had not identified clinical studies or human exposure data for KPV by any route of administration. The agency therefore concluded that potential safety risks in humans were unknown.
KPV therefore has an interesting preclinical literature but no established human efficacy or safety profile. Peptide King presents it as laboratory research material, not a medical treatment.
What Does the Peptide King KPV 20mg Page Specify?
The live KPV 20mg research product page gives researchers several specifications directly.
The Listed Specifications Are Clear
The current page identifies:
- Quantity: 20mg
- Form: lyophilized powder
- Purity: ≥98% HPLC verified
- Storage: -20°C protected from light
- Molecular weight: 342.44 g/mol
- Length: three amino acids, Lys-Pro-Val
What the Current KPV Page Does Not Show
The KPV 20mg page lists ≥98% HPLC-verified purity, but it does not display a batch-specific CoA link.
That matters because KPV naming can vary between free-base and acetate forms.
Before relying on purity or identity, confirm which form was tested and match the analytical report to lot being ordered. The product specification and batch report should describe the same material.
HPLC Purity Is Not the Same as Complete Identity Verification
High-performance liquid chromatography can estimate chromatographic purity by separating components in a sample.
A ≥98% HPLC result means the principal chromatographic component represents a high proportion of detected material under that method. It does not establish that the main peak is definitely KPV.
Mass spectrometry can support identity, while quantity testing answers a separate question.
Why Does a Certificate of Analysis Matter for KPV?
A CoA should help connect analytical testing to the actual material being procured.
KPV Has a Naming Problem That Makes Documentation More Important
The FDA’s review found examples where KPV-related materials were inconsistently described as free base or acetate, including documentation where names and molecular formulas did not align.
That makes certificate review particularly important for this compound.
Researchers should look for:
| CoA field | What to verify |
|---|---|
| Chemical name | Free base, acetate, or another form |
| Molecular weight | Consistent with the stated form |
| Lot number | Matches current inventory |
| Purity | Method and result are reported |
| Identity | Appropriate analytical support is shown |
| Quantity | Measured content is distinguished from purity |
| Test date | Relevant to the current batch |
How Does KPV Compare With Other Peptides in Tissue Research?
KPV appears beside compounds such as BPC-157 or GHK-Cu in many research catalogs, but their structures and evidence are different.
Similar Research Themes Do Not Make Peptides Interchangeable
Peptide King also lists a TB-500 + BPC-157 blend and GHK-Cu 50mg.
All can appear in tissue, inflammatory, or repair research, but they involve different pathways and evidence levels. A good experiment starts with the specific molecule.
How Does Canadian Fulfillment Work?
Peptide King fulfills research orders within Canada.
Domestic Processing Follows the Site’s Standard Timeline
The site states that orders are typically processed within one to two business days, with standard shipping estimated at three to seven business days depending on province. Tracking is provided after dispatch.
How We Present KPV 20mg at Peptide King
At Peptide King, we present KPV peptide as a research compound with an interesting but predominantly preclinical evidence base.
Its three-amino-acid sequence is simple, but the quality questions are not.
Researchers should distinguish KPV free base from acetate, separate HPLC purity from molecular identity, verify the lot, and keep cell and animal findings separate from human claims.
For research-grade KPV 20mg, the sequence is only the beginning of the quality check.