Checked October 21, 2026 · 13 vendors
Prostamax for sale: prices from 13 vendors (October 2026)
Synthetic tetrapeptide (Lys-Glu-Asp-Pro) bioregulator associated with prostate tissue. Where to buy it for research: every US vendor we track that sells Prostamax, cheapest per milligram first, with COA status. The lowest in-stock price this week is $2.20/mg at Peptide Crafters.
- Lowest per mg
- $2.20
- Peptide Crafters
- Median per mg
- $3.00
- 12 in stock
- Cheapest with COA
- —
- none yet
- Vendor publishes COAs
- 0%
- of in-stock offers
Prostamax prices, cheapest per mg
▼ cheaper / ▲ dearer than last week- 1
Prostamax 25mg
$55.00
25 mg
$2.20/mg
NewCheck pricepeptidecrafters.com
- 2
Prostamax 20mg
$54.00
20 mg
$2.70/mg
NewCheck pricemodernaminos.com
- 3
Prostamax 20mg
$55.00
20 mg
$2.75/mg
NewCheck priceverifiedpeptides.com
- 4
Prostamax 20mg
$55.00
$65.0020 mg
$2.75/mg
NewCheck pricepurapeptides.com
- 5
Prostamax 20mg
$55.00
20 mg
$2.75/mg
NewCheck pricelibertypeptides.com
- 6
Amino USA4.7Prostamax 20mg
$55.00
$60.0020 mg
$2.75/mg
NewCheck priceaminousa.com
- 7
Swiss Chems7.2Prostamax 20mg
$59.95
20 mg
$3.00/mg
NewCheck priceswisschems.is
- 8
Prostamax 20mg
$59.99
$79.9920 mg
$3.00/mg
NewCheck pricenusciencepeptides.com
- 9
Raw Amino1.0Prostamax 20mg
$60.00
20 mg
$3.00/mg
NewCheck pricerawamino.com
- 10
Prostamax 20mg
$63.00
20 mg
$3.15/mg
NewCheck pricecorepeptides.com
- 11
Prostamax 20mg
$79.97
20 mg
$4.00/mg
NewCheck pricebiolongevitylabs.com
- 12
Prostamax 20mg
$105
20 mg
$5.25/mg
NewCheck pricecertified-pep.com
- –
Prostamax 20mg
$60.00
20 mg
$3.00/mg
NewCheck priceamericanpeptides.us
Prices are the vendor's list price for one vial on the check date, in USD, before shipping. Ranked by price per mg; vendors that only sell multi-vial kits are listed after single-vial prices, at the per-vial price; sponsorship never changes the order. Links marked "Check price" may earn us a commission.
Prostamax price history
Price history starts with our first weekly check. Each re-check adds a point here, so the chart fills in week by week.
Research use only. The compounds referenced on this page are sold for laboratory research purposes only. They are not drugs, foods, cosmetics or dietary supplements, and they are not approved by the FDA for human or veterinary use. Nothing on this page is medical advice. PeptideChecked does not sell peptides, does not provide dosing guidance, and does not recommend the use of any compound in humans.
FAQ
Prostamax price questions
Where can I buy Prostamax for research?
We track 12 US vendors with Prostamax in stock as of October 21, 2026, listed above from cheapest per mg. Before ordering, open the vendor's review for its testing record and check that a COA exists for the exact lot. Prostamax sold this way is labeled for laboratory research only.
Where is Prostamax cheapest?
On October 21, 2026, the lowest Prostamax price per mg among in-stock vendors was Peptide Crafters at $2.20/mg ($55.00 for 25 mg).
How much does Prostamax cost per mg?
The median across 12 in-stock vendors was $3.00 per mg on October 21, 2026, with a range of $2.20 to $5.25.
How often are Prostamax prices checked?
Weekly. We read each Prostamax price from the vendor's own product page and save every check, so each row shows the change since last week. The last check was October 21, 2026.
What does the COA badge mean on Prostamax listings?
The vendor publishes certificates of analysis (lab reports) for its products on its own site. 0% of the in-stock offers above come from vendors that do. Check that a report exists for the exact product and lot you order: a COA shows what a lab measured for one batch, not a guarantee about the vial you receive.