KPV is currently in stock at 83 shops, all of which have third-party lab tests on file. Prices range from $17.50 to $129.95 per vial, with a median of $5.00 per mg. Vial sizes range from 4mg to 80mg. Last updated 11 September 2026.
190 shops are known to sell KPV — 86 with a live listing, 104 evidenced by a lab test in the last year. 105 listings are identified, of which 90 can be compared per milligram.
Bigger vials cost less per milligram. The vial, freeze-drying, labelling, lab test and shipping cost roughly the same whether it holds 5mg or 100mg, so per-milligram price falls as fill size rises. Compare within your size band rather than across the whole list.
| Shop | Size | Price | $/mg | Checked |
|---|---|---|---|---|
Smaller vials4–5mg · 10 offersfrom $5.60/mg | ||||
| ruo.bioThird-party lab tests on file | 5mg | $28.00 | $5.60/mg | 13h ago |
| nelapeptides.netThird-party lab tests on fileClaimed | 5mg | $28.00 | $5.60/mg | 13h ago |
| eternalpeptides.comThird-party lab tests on file | 5mg | $29.99 | $6.00/mg | 14h ago |
| aminousa.comThird-party lab tests on file | 5mg | $35.00 | $7.00/mg | 13h ago |
| happypeptides.comThird-party lab tests on fileClaimed | 5mg | $45.00 | $9.00/mg | 14h ago |
| PrimeLab PeptidesThird-party lab tests on file | 5mg | $45.00 | $9.00/mg | 14h ago |
| corepeptides.comThird-party lab tests on file | 4mg | $38.00 | $9.50/mg | 14h ago |
| biotechpeptides.comThird-party lab tests on file | 4mg | $39.00 | $9.75/mg | 14h ago |
| researchreadypeptides.comThird-party lab tests on file | 5mg | $61.24 | $12.25/mg | 13h ago |
| peptideminds.comThird-party lab tests on file | 5mg | $73.00 | $14.60/mg | 11h ago |
Larger vials10–80mg · 79 offersfrom $1.30/mg | ||||
| pureuspeptide.com/Third-party lab tests on filelisted as KLOW 80mg | 80mg | $103.95 | $1.30/mg | 12h ago |
| bulkpeptidesupplyThird-party lab tests on file | 10mg | $17.50 | $1.75/mg | 14h ago |
| mypurepeptide.comThird-party lab tests on file | 10mg | $20.00 | $2.00/mg | 13h ago |
| aurora-peptides.comThird-party lab tests on file | 30mg | $68.00 | $2.27/mg | 11h ago |
| evolvebiopep.comThird-party lab tests on file | 10mg | $24.99 | $2.50/mg | 13h ago |
| Rescue Research USA PeptidesThird-party lab tests on file | 30mg | $79.99 | $2.67/mg | 12h ago |
| cosmicpeptides.comThird-party lab tests on file | 10mg | $27.99 | $2.80/mg | 12h ago |
| prosperitypeptides.comThird-party lab tests on file | 14mg | $40.00 | $2.86/mg | 6 days ago |
| peptideruo.comThird-party lab tests on file | 10mg | $29.00 | $2.90/mg | 11h ago |
| s1research.netThird-party lab tests on fileClaimed | 10mg | $30.00 | $3.00/mg | 12h ago |
| goalphalabs.comThird-party lab tests on file | 10mg | $32.49 | $3.25/mg | 13h ago |
| vandl-labs.comThird-party lab tests on file | 10mg | $32.49 | $3.25/mg | 13h ago |
| wolverineresearchlab peptidesThird-party lab tests on file | 30mg | $99.00 | $3.30/mg | 13h ago |
| nurevpeptides.comThird-party lab tests on file | 10mg | $34.00 | $3.40/mg | 13h ago |
| puratekpeptides.comThird-party lab tests on file | 10mg | $34.95 | $3.50/mg | 12h ago |
| doublerlabs.isThird-party lab tests on file | 10mg | $34.99 | $3.50/mg | 12h ago |
| Panda PeptidesThird-party lab tests on fileClaimed | 10mg | $39.99 | $4.00/mg | 13h ago |
| PurgoLabs peptidesThird-party lab tests on file | 10mg | $39.99 | $4.00/mg | 11h ago |
| valorpeptides.comThird-party lab tests on file | 10mg | $39.99 | $4.00/mg | 13h ago |
| peptidecrafters.comThird-party lab tests on file | 10mg | $40.00 | $4.00/mg | 14h ago |
| Peptide PlugsThird-party lab tests on file | 10mg | $40.00 | $4.00/mg | 13h ago |
| genpeptide.comThird-party lab tests on file | 10mg | $40.00 | $4.00/mg | 12h ago |
| Zen AminosThird-party lab tests on fileClaimed | 30mg | $129.95 | $4.33/mg | 13h ago |
| ameano peptidesThird-party lab tests on file | 10mg | $44.00 | $4.40/mg | 12h ago |
| ezpeptides.comThird-party lab tests on file | 10mg | $44.00 | $4.40/mg | 12h ago |
| researchchemhq.coThird-party lab tests on file | 10mg | $44.99 | $4.50/mg | 12h ago |
| optimumformula peptidesThird-party lab tests on file | 10mg | $44.99 | $4.50/mg | 11h ago |
| simplepeptide.comThird-party lab tests on file | 10mg | $45.00 | $4.50/mg | 14h ago |
| biopeptitech.comThird-party lab tests on file | 10mg | $45.00 | $4.50/mg | 12h ago |
| nurapeptide.comThird-party lab tests on file | 10mg | $45.00 | $4.50/mg | 12h ago |
| eternalpeptides.comThird-party lab tests on file | 10mg | $45.49 | $4.55/mg | 14h ago |
| myoasislabs peptidesThird-party lab tests on file | 10mg | $47.00 | $4.70/mg | 11h ago |
| pureuspeptide.com/Third-party lab tests on file | 10mg | $47.25 | $4.72/mg | 12h ago |
| myaminolab peptidesThird-party lab tests on file | 10mg | $48.00 | $4.80/mg | 11h ago |
| novapeptidesupply.comThird-party lab tests on file | 10mg | $49.99 | $5.00/mg | 13h ago |
| thrivepeptides.usThird-party lab tests on file | 10mg | $49.99 | $5.00/mg | 13h ago |
| orbitrexpeptide.isThird-party lab tests on file | 10mg | $49.99 | $5.00/mg | 13h ago |
| globalaminos.com peptidesThird-party lab tests on file | 10mg | $49.99 | $5.00/mg | 12h ago |
| rhomeresearchThird-party lab tests on fileClaimed | 12mg | $59.99 | $5.00/mg | 13h ago |
| OROS ResearchThird-party lab tests on fileClaimed | 15mg | $74.99 | $5.00/mg | 13h ago |
| plumlabsresearch peptidesThird-party lab tests on file | 10mg | $50.00 | $5.00/mg | 11h ago |
| ascensionpeptides.comThird-party lab tests on file | 10mg | $50.00 | $5.00/mg | 12h ago |
| aminousa.comThird-party lab tests on file | 10mg | $50.00 | $5.00/mg | 13h ago |
| FullScale PeptidesThird-party lab tests on file | 10mg | $50.00 | $5.00/mg | 11h ago |
| aminoquestlabs.comThird-party lab tests on file | 10mg | $50.00 | $5.00/mg | 12h ago |
| profoundaminos.comThird-party lab tests on file | 10mg | $50.00 | $5.00/mg | 13h ago |
| trulabpeptides.comThird-party lab tests on file | 10mg | $51.00 | $5.10/mg | 12h ago |
| onedaycompounds.comThird-party lab tests on file | 10mg | $52.99 | $5.30/mg | 12h ago |
| hyteresearchdivision peptidesThird-party lab tests on file | 10mg | $54.99 | $5.50/mg | 11h ago |
| nusciencepeptides.comThird-party lab tests on file | 10mg | $54.99 | $5.50/mg | 14h ago |
| vandl-labs.comThird-party lab tests on file | 10mg | $54.99 | $5.50/mg | 13h ago |
| coffeeandpeppers.comThird-party lab tests on file | 10mg | $54.99 | $5.50/mg | 13h ago |
| verifiedpeptides.comThird-party lab tests on file | 10mg | $55.00 | $5.50/mg | 14h ago |
| rivercityaminos peptidesThird-party lab tests on file | 10mg | $55.00 | $5.50/mg | 11h ago |
| libertypeptides.comThird-party lab tests on file | 10mg | $55.00 | $5.50/mg | 14h ago |
| polarispeptides.comThird-party lab tests on file | 10mg | $55.00 | $5.50/mg | 14h ago |
| atomiklabz.comThird-party lab tests on file | 10mg | $55.00 | $5.50/mg | 13h ago |
| optimasupply.isThird-party lab tests on fileClaimed | 10mg | $55.00 | $5.50/mg | 14h ago |
| nulifepeptides.comThird-party lab tests on file | 10mg | $55.00 | $5.50/mg | 12h ago |
| purapeptides.comThird-party lab tests on file | 10mg | $55.00 | $5.50/mg | 13h ago |
| neurolabsresearch.comThird-party lab tests on file | 10mg | $59.94 | $5.99/mg | 13h ago |
| uspurepeptides.comThird-party lab tests on file | 10mg | $60.00 | $6.00/mg | 12h ago |
| PrimeLab PeptidesThird-party lab tests on file | 10mg | $65.00 | $6.50/mg | 14h ago |
| elitebiogenix.comThird-party lab tests on file | 10mg | $65.99 | $6.60/mg | 12h ago |
| penguinpeptides.comThird-party lab tests on file | 10mg | $69.00 | $6.90/mg | 14h ago |
| protidehealth.comThird-party lab tests on file | 10mg | $70.00 | $7.00/mg | 12h ago |
| bulkglp.comThird-party lab tests on file | 10mg | $70.00 | $7.00/mg | 13h ago |
| aiopeptides.comThird-party lab tests on file | 10mg | $72.00 | $7.20/mg | 14h ago |
| aminovault.comThird-party lab tests on file | 10mg | $73.95 | $7.39/mg | 13h ago |
| curo.youThird-party lab tests on fileClaimed | 10mg | $74.00 | $7.40/mg | 12h ago |
| happypeptides.comThird-party lab tests on fileClaimed | 10mg | $75.00 | $7.50/mg | 14h ago |
| prioritypeptides.netThird-party lab tests on file | 10mg | $75.00 | $7.50/mg | 13h ago |
| certified-pep.comThird-party lab tests on file | 10mg | $76.00 | $7.60/mg | 14h ago |
| nupeps.comThird-party lab tests on file | 10mg | $76.00 | $7.60/mg | 14h ago |
| warrior-makers.comThird-party lab tests on file | 10mg | $79.00 | $7.90/mg | 12h ago |
| felixchem.isThird-party lab tests on file | 10mg | $80.00 | $8.00/mg | 13h ago |
| buyironpeptides.comThird-party lab tests on file | 10mg | $89.00 | $8.90/mg | 13h ago |
| betterbiosynthesis.comThird-party lab tests on file | 10mg | $99.00 | $9.90/mg | 13h ago |
| biolongevitylabs.comThird-party lab tests on file | 10mg | $99.97 | $10.00/mg | 14h ago |
Out of stock5mg · 1 offer | ||||
| cosmicpeptides.comThird-party lab tests on fileOut of stock | 5mg | $32.99 | $6.60/mg | 12h ago |
Out-of-stock rows are excluded from the lowest, the median and the shop count
Read the KPV guide
Lab-test data, purity averages and what the evidence actually shows.