Document-level evidence
The current index contains a certificate document naming this vendor and KPV, with printed fields such as date, lab, lot, or reported purity when available.
77 current listings from 67 vendors, ranked by observed cost per milligram and checked for a COA indexed to the same vendor + peptide pair.
$160 / 100mg · $1.60/mg
$/mg = observed price ÷ vial size. Prices and stock can change; confirm on the vendor site. COA “matched” means same vendor + peptide, not proof that the listing is the tested batch. Some outbound links are affiliate links.
The current index contains a certificate document naming this vendor and KPV, with printed fields such as date, lab, lot, or reported purity when available.
The document does not establish authenticity, chain of custody, vial contents, sterility, endotoxin status, safety, efficacy, or overall vendor quality.
Across 77 current listings from 67 tracked vendors, KPV ranges from $1.60/mg to $12/mg, averaging $5.83/mg. The cheapest observed listing is Umbrella Labs at $160 for a 100mg vial.
The lowest observed KPV price is $1.60 per mg at Umbrella Labs, about 73% below the current listing average. Cost-per-mg (price ÷ vial size) makes different vial sizes comparable. Confirm the current price and stock on the vendor site.
KPV has current observations from 67 research-peptide vendors we track, including Umbrella Labs, Welli Labs, Pure Health Peptides. This page compares 77 listings by cost-per-mg and links to the vendor. Some outbound links are affiliate links.
37 of the 67 tracked vendors have a current indexed COA document matched to the same vendor and KPV; 34 of those documents have a printed test date within 18 months. A match identifies document evidence for the pair. It does not link a listing to the tested batch or establish authenticity, sterility, safety, or vendor quality.
The listings compared here are sold as research-use products, not as approved medicines. Rules vary by product and jurisdiction. This page is informational, not medical or legal advice. Check the listing and your local regulations.