5.0
Shipping was fast and the order arrived without any issues. Overall a positive experience with Americanpeptides and no complaints about the service.
Thomas
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Research Use Only. Products listed are not for human or animal consumption. Statements have not been evaluated by the FDA.View full disclaimers →
Partner spotlight
31 compounds in stock, 114 of their 114 listings backed by a published COA, and 10% off with code PEPLOOKUP. See how their live prices compare with every other supplier on their profile.
31
Compounds in stock
114
Listings tracked
114
Listings with COAs
Partner discount
10% off
The directory
90 listed
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A free forum for researchers to learn peptide science, interpret certificates of analysis, review published studies and compare verified suppliers.
American Peptides is a U.S. research peptide supplier offering 29 compounds with COA coverage on 47 of 53 listings and a 10% discount code.
Exclusive American Peptides offer
10% off with coupon
Before you order
Product catalog
$3.85/mg · seen 1mo ago
View COA
$0.18/mg · seen 1mo ago
View COA
$0.68/mg · seen 1mo ago
View COA
$7.20/mg · seen 1mo ago
View COA
$10.80/mg · seen 1mo ago
View COA
$7.09/mg · seen 1mo ago
View COA
$9.00/mg · seen 1mo ago
View COA
$1.93/mg · seen 1mo ago
$5.40/mg · seen 1mo ago
View COATested by Third-party laboratory
Overview
American Peptides is a research peptide supplier listed in the PepLookup directory, operating from the United States and established in 2026. This American Peptides review is based on 53 tracked listings across 29 compounds, with 48 in stock when prices were last checked. Every American Peptides price is read directly from their own product pages and converted to cost per milligram, so a single vial and a multi-vial kit can be compared on the same scale as every other supplier. 47 of the 53 listings link to a certificate of analysis from a third-party laboratory, which you can open directly from the listing a real signal when judging if American Peptides is legit. An active American Peptides discount code is applied to the prices shown here. PepLookup does not sell American Peptides's products: every order is placed on the supplier's own site, for laboratory research use only.
Highlights
Researchers comparing American Peptides prices tend to weigh a few concrete, checkable points, gathered here in one place. The catalogue covers 29 compounds, each priced per milligram for fair comparison. An active American Peptides coupon code, peplookup, gives 10% off and is already reflected in the prices shown. COAs are linked on 47 of 53 listings, though the public review profile currently averages 3.4 out of 5 worth weighing alongside the COA coverage rather than on its own. Payment options include Visa, Mastercard and American Express. Prices carry the time they were last seen, and out-of-stock listings never win a comparison. Compare cost per mg and confirm current terms on American Peptides's own site before ordering.
Comparison
Of the 29 compounds American Peptides has in stock that other tracked suppliers also carry, American Peptides had the lowest listed cost per mg on 1. PepLookup tracks 89 other suppliers, ranking every listing by cost per milligram rather than headline price, since pack sizes differ. Out-of-stock listings are excluded before ranking. Prices move often open any compound's comparison page to see exactly where American Peptides prices sit today.
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