KPV.

Quick Overview.

KPV (Lysine-Proline-Valine) is a naturally occurring tripeptide that corresponds to the C-terminal sequence (amino acids 11-13) of the neuropeptide alpha-Melanocyte Stimulating Hormone (α-MSH).[1] It is an incredibly potent anti-inflammatory and antimicrobial agent.

Unlike full-length α-MSH, which binds to melanocortin receptors to induce tanning and sexual arousal, KPV exerts its effects primarily inside the cell. It travels directly to the nucleus and blocks NF-κB, the "master switch" for inflammation in the human body.[2] It is highly regarded for treating inflammatory bowel disease (IBD), severe skin conditions, and systemic autoimmune flare-ups.

• Primary Use Case: Gut inflammation (Crohn's, Ulcerative Colitis), skin conditions (psoriasis, eczema), and systemic autoimmune management.
• Mechanism: Competitively inhibits NF-κB translocation to the nucleus, halting the production of pro-inflammatory cytokines. Also possesses direct fungicidal and bactericidal properties.[3]
• Who it is for: Individuals suffering from chronic gut inflammation, severe skin conditions, or systemic autoimmune flare-ups.
• Who it is NOT for: Those looking for muscle growth, fat loss, or tanning (it does not bind to the MC1R receptor like Melanotan).

The Protocol & Usage Guide.

confidence_tier: well-established

KPV is unique because its tiny size (just three amino acids) allows it to be absorbed effectively via multiple routes: oral capsules, subcutaneous injection, or topical creams.

Standard Dosing

Cycle Length

• Standard Cycle: 4 to 8 weeks.
• Discontinuation: Can be stopped abruptly. Long-term continuous use (beyond 3-4 months) is generally unnecessary once the underlying inflammation or dysbiosis is resolved.

Reconstitution Math (Injectable)

• Vial Size: 10 mg (10,000 mcg)
• Bacteriostatic Water Added: 2 mL
• Concentration: 5,000 mcg per mL
• To draw 250 mcg: Pull to the 5-unit mark (0.05 mL) on a U-100 insulin syringe.

Nutritional Support & Recommended Supplements.

confidence_tier: emerging

Safety, Interactions & Side Effect Management.

confidence_tier: well-established

KPV is exceptionally well-tolerated. Because it is a naturally occurring fragment of a hormone already present in the body, side effects are extremely rare.

Side Effect Profile

Contraindications

• None explicitly known, though pregnant or nursing women should avoid use due to a lack of safety data.

Common Stacks & Combinations.

confidence_tier: community

Body Composition & Training Guide.

confidence_tier: community

KPV is not a muscle-building or fat-loss peptide. Its value in training is purely for recovery. By drastically lowering systemic inflammation, it allows athletes to recover faster from brutal training blocks and reduces chronic joint pain.

• Tracking Progress: If using for gut health, track your digestion, bloating, and stool quality daily. If using for skin, take weekly photos.

Storage, Handling & Accessibility.

confidence_tier: well-established

• Unreconstituted (Lyophilized Powder): Store in the freezer (-20°C) for up to 24 months.
• Reconstituted (Liquid): Must be stored in the refrigerator (2-8°C). Good for 30-45 days.
• Oral Capsules: Store at room temperature in a cool, dry place.
• WADA Status: Not explicitly banned, as it is not an anabolic agent or hormone secretagogue.[5]

Bloodwork Monitoring Guide.

confidence_tier: emerging

KPV does not typically alter standard blood markers (hormones, lipids, glucose). If using it to treat a specific autoimmune condition, monitor your specific inflammatory markers:

• CRP (C-Reactive Protein)
• ESR (Erythrocyte Sedimentation Rate)

Comparison to Similar Compounds.

confidence_tier: well-established

Deep Dive (For Advanced Researchers).

confidence_tier: well-established

Mechanism of Action

KPV is a tripeptide consisting of the amino acids Lysine, Proline, and Valine. It is the C-terminal sequence (amino acids 11-13) of the neuropeptide alpha-Melanocyte Stimulating Hormone (α-MSH).[1]

KPV is a master regulator of inflammation and microbial balance:

1. NF-κB Inhibition: KPV enters the cell and translocates directly to the nucleus. There, it competitively blocks the interaction between importin-α3 and NF-κB. NF-κB is the "master switch" for inflammation; by blocking it, KPV halts the transcription of pro-inflammatory cytokines (like TNF-α, IL-1β, and IL-6) at the genetic level.[2]
2. Antimicrobial Activity: KPV has potent fungicidal and bactericidal properties. It is particularly effective against Candida albicans and Staphylococcus aureus. It works by disrupting the microbial cell membrane and inhibiting germ tube formation (the mechanism yeast uses to invade human tissue).[3]
3. PepT1 Transporter: In the gut, KPV is taken up by the PepT1 transporter expressed on intestinal epithelial cells, allowing it to exert massive localized anti-inflammatory effects in conditions like Ulcerative Colitis and Crohn's disease.[6]

Clinical Trial Summary

• Inflammatory Bowel Disease (IBD): In murine models of colitis, KPV administration significantly reduced colonic damage, decreased inflammatory infiltrates, and accelerated mucosal healing.[7]
• Dermatology: Topical KPV has been studied for psoriasis and contact dermatitis, showing significant reductions in erythema, scaling, and epidermal thickness.[8]
• Human Trials: While extensive in animals, large-scale human clinical trials are lacking, primarily because naturally occurring, unpatentable tripeptides offer little financial incentive for pharmaceutical companies.

Frequently Asked Questions (FAQ).

confidence_tier: community

Q: Will KPV make me tan like Melanotan? A: No. Although it is derived from α-MSH, KPV lacks the specific amino acid sequence required to bind to the MC1R receptor, which is responsible for melanogenesis (tanning).

Q: Can I take oral KPV for joint pain? A: Oral KPV is primarily absorbed by the PepT1 transporters in the gut, making it highly effective for intestinal inflammation. For systemic joint pain, subcutaneous injection is significantly more effective.

Q: Is the "die-off" reaction real? A: Yes. If you have a severe overgrowth of Candida or pathogenic bacteria in your gut, the rapid antimicrobial action of oral KPV can cause a Herxheimer reaction (fatigue, brain fog, mild fever) as the dying pathogens release endotoxins.

International Regulatory Status.

confidence_tier: well-established

Decision Tree.

confidence_tier: community

[Goal: Reduce Inflammation?]
  |
  +-- Is the inflammation primarily in the gut (IBD, Crohn's, Candida)?
        |
        +-- (Yes) -> Use Oral KPV Capsules (250-500mcg daily).
        |            *Highly recommended to stack with Oral BPC-157.*
        |
        +-- (No) -> Is the inflammation localized to the skin (Psoriasis, Eczema)?
              |
              +-- (Yes) -> Use Topical KPV Cream (1-2%).
              |
              +-- (No, it is systemic/joint pain) -> Use Injectable KPV (200-500mcg daily).

Schema.org Data.

{
  "@context": "https://schema.org",
  "@type": "MedicalEntity",
  "name": "KPV",
  "alternateName": ["Lysine-Proline-Valine", "alpha-MSH(11-13)"],
  "description": "A naturally occurring tripeptide with potent anti-inflammatory and antimicrobial properties, used for treating inflammatory bowel disease, skin conditions, and systemic inflammation.",
  "legalStatus": {
    "@type": "DrugLegalStatus",
    "description": "Unapproved by FDA; available as a research chemical or supplement. Not prohibited by WADA.^[5]"
  }
}

What we cited.