What is KPV?
KPV is a short peptide composed of three amino acids—lysine, proline, and valine. In fact, the letters making up the name are the chemical abbreviations of these amino acids (K=lysine, P=proline, V=valine). KPV has drawn interest for its potent anti-inflammatory properties. It is derived from a larger naturally occurring hormone called alpha-melanocyte–stimulating hormone (α-MSH). The KPV portion of α-MSH plays a role in immune regulation and inflammation control. Researchers discovered that KPV retains much of α-MSH’s anti-inflammatory activity without affecting pigmentation or hormonal balance.
What is α-MSH?
Alpha-MSH is a peptide hormone produced in the pituitary gland and other tissues. It helps regulate inflammation, immune responses, and skin pigmentation. While α-MSH has broad effects in the body, its use as a therapy is limited because it also influences melanocytes (leading to tanning) and other hormonal pathways. KPV isolates the anti-inflammatory portion of α-MSH while avoiding these unwanted effects. See our articles on Melanotan I and Melanotan II for more information on the tanning effects of α-MSH.
How Does KPV Work?
KPV works primarily by modulating immune signaling pathways involved in inflammation. One of its key actions is inhibition of NF-κB, a transcription factor that controls the production of many inflammatory cytokines such as TNF-α, IL-1β, and IL-6. By dampening this pathway, KPV reduces excessive inflammatory signaling at the cellular level.
KPV has also been shown to stabilize epithelial barriers, particularly in the gut. This helps protect tissues from inflammatory damage and supports healing. Unlike traditional anti-inflammatory drugs, KPV does not broadly suppress the immune system; instead, it helps restore balance to an overactive inflammatory response.
What is KPV Used for?
Researchers are studying the role of KPV in the following applications:
- Inflammatory bowel conditions such as ulcerative colitis
- Skin conditions like eczema, psoriasis, and inflammatory acne
- Autoimmune and chronic inflammatory disorders
- Support for wound healing in inflamed tissues
KPV Side Effects
KPV has demonstrated a strong safety profile in experimental studies, with minimal toxicity observed. Because it does not affect pigmentation or major hormonal systems, side effects appear limited. Human clinical data is still emerging, and long-term effects have not yet been fully characterized.
KPV Dosing Protocol (for Research)
While recommended dosages have not been established, extrapolating from the animal studies, the following research algorithm is recommended (injection under the skin, i.e. subcutaneous):
| Phase | Dose & frequency |
|---|---|
| Weeks 1-2 | 100 mcg (0.1 mg) daily |
| Weeks 3-4 | 200 mcg (0.2 mg) daily |
| Weeks 5-6 | 400 mcg (0.4 mg) daily |
| Week 7 and beyond | 500 mcg (0.5 mg) daily |
Shown for education. A licensed clinician should set any actual dose. Compare protocols across peptides in the peptide dosage chart.
Common questions about KPV
What is KPV?
KPV is a short peptide composed of three amino acids—lysine, proline, and valine. In fact, the letters making up the name are the chemical abbreviations of these amino acids (K=lysine, P=proline, V=valine).
What is KPV used for?
Areas studied include: Inflammatory bowel conditions such as ulcerative colitis; Skin conditions like eczema, psoriasis, and inflammatory acne; Autoimmune and chronic inflammatory disorders; Support for wound healing in inflamed tissues.
How does KPV work?
KPV works primarily by modulating immune signaling pathways involved in inflammation. One of its key actions is inhibition of NF-κB, a transcription factor that controls the production of many inflammatory cytokines such as TNF-α, IL-1β, and IL-6.
What are the side effects of KPV?
KPV has demonstrated a strong safety profile in experimental studies, with minimal toxicity observed. Because it does not affect pigmentation or major hormonal systems, side effects appear limited.
What is the dosage of KPV?
One commonly referenced research protocol is: Weeks 1-2: 100 mcg (0.1 mg) daily; Weeks 3-4: 200 mcg (0.2 mg) daily; Weeks 5-6: 400 mcg (0.4 mg) daily; Week 7 and beyond: 500 mcg (0.5 mg) daily. Shown for education only; a licensed clinician should set any actual dose. See the dosing table.
How do you mix (reconstitute) KPV?
Wipe the vial tops with alcohol, add bacteriostatic water slowly so it runs down the inside of the glass, then roll the vial gently until the powder dissolves; don’t shake it. See the step-by-step guide with diagrams for the pen and syringe methods.
How much bacteriostatic water do you add to KPV?
There is no single correct amount. We recommend 2.1 mL: about 0.1 mL is lost during transfer, leaving roughly 2.0 mL of usable solution. You can add more or less (most peptide vials hold up to 3 mL); just enter the amount in the dose calculator. See the step-by-step mixing guide.
Is KPV FDA-approved?
No. KPV is not FDA-approved in the US (status as of October 2026).
References
- Luger TA, Brzoska T. alpha-MSH related peptides: a new class of anti-inflammatory and immunomodulating drugs. Ann Rheum Dis. 2007;66 Suppl 3(Suppl 3):iii52-5. doi: 10.1136/ard.2007.079780. View source
- Dalmasso G, et al. PepT1-mediated tripeptide KPV uptake reduces intestinal inflammation. Gastroenterology. 2008;134:166-78. doi: 10.1053/j.gastro.2007.10.026. Epub 2007 Oct 17. View source
- Delgado R, et al. Melanocortin peptides inhibit production of proinflammatory cytokines and nitric oxide by activated microglia. J Leukoc Biol. 1998 Jun;63(6):740-5. doi: 10.1002/jlb.63.6.740. View source