pep.deals

Prostamax price: compare 5 vendors

5 vendors sell Prostamax. The most common size, 20 mg, costs $54.00–$79.97 across all of them as of Oct 14, 2026; the cheapest is Modern Aminos at $54.00.

Every vendor's price per mg, side by side. Prices include the sales and codes shown. Buy links may earn us a commission.

Also known as: Lys-Glu-Asp-Pro

Cheapest per mg firstCheapest price first
Vendor$/mgBuy
Modern Aminos
20 mg
$2.70Buy →
Swiss Chems
20 mg
$3.00Buy →
peptides.gg
20 mg
$3.00Buy →
Core Peptides
20 mg
$3.15Buy →
BioLongevity Labs
20 mg
$4.00Buy →

About Prostamax

Prostamax is the tetrapeptide Lys-Glu-Asp-Pro, one of Vladimir Khavinson's short bioregulator peptides.

Prostamax is a four-amino-acid peptide, Lys-Glu-Asp-Pro, written KEDP in one-letter code. It comes from the same family of short bioregulator peptides as Epithalon and Cartalax, grouped here under Bioregulators. It is not the same product as Prostatilen, which is a mixture rather than a single defined peptide. Vendors sell Prostamax research-use-only as a lyophilized powder, usually in 20 mg vials.

Comparing Prostamax prices

Because Prostamax and Prostatilen share a prefix, check that a cheap listing is the right compound before comparing. This page counts only Prostamax, and the table above divides price plus a shipping estimate by the milligrams in each vial.

Most listings use the same 20 mg vial, so shipping often decides the ranking. Check the coupons page for a current code.

Frequently asked questions

How much does Prostamax cost?
5 vendors sell Prostamax. The most common size, 20 mg, costs $54.00–$79.97 across all of them as of Oct 14, 2026; the cheapest is Modern Aminos at $54.00. Per mg, the cheapest landed price we track is $2.70 from Modern Aminos, across 5 vendors we compare. Landed means list price plus a shipping estimate, minus the sale and coupon code we show for that vendor, divided by the total milligrams in the pack. Prices refresh daily, so confirm the current total at checkout.
Where can I buy Prostamax?
5 vendors sell Prostamax as a research-use-only peptide; the lowest prices per mg right now are at Modern Aminos, Swiss Chems, and peptides.gg. Each Buy link above goes to that vendor's own product page. pep.deals doesn't sell anything itself.
Which vendor is cheapest for Prostamax right now?
Modern Aminos has the lowest landed cost per mg in our latest snapshot. The table above is sorted cheapest-first and updates daily, so check the current order before you buy.
Do you sell Prostamax?
No. pep.deals is an independent comparison tool that links to third-party suppliers. We do not sell, ship, or support any product.
Is any of this medical or dosing advice?
No. Prostamax is listed strictly as a research-use-only peptide. We publish sourcing and price facts only, with no dosing, reconstitution, or use guidance.

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