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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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ZC LabsPepLookup Community · Hosted on Skool
A free forum for researchers to learn peptide science, interpret certificates of analysis, review published studies and compare verified suppliers.
Kalyx Labs is a U.S. research peptide supplier offering 99%+ purity, third-party HPLC/LC-MS testing, batch COAs and fast U.S. fulfillment.
Exclusive Kalyx Labs offer
25% off with coupon
Before you order
Product catalog
$3.75/mg · seen 1mo ago
View COA
$4.87/mg · seen 1mo ago
View COA
$3.00/mg · seen 1mo ago
View COA
$3.00/mg · seen 1mo ago
View COA
$2.25/mg · seen 1mo ago
View COA
$2.02/mg · seen 1mo ago
View COA
$3.00/mg · seen 1mo ago
View COA
$3.75/mg · seen 1mo ago
View COA
$4.50/mg · seen 1mo ago
View COATested by Independent third-party laboratory
Overview
Kalyx Labs currently runs a 25% sitewide discount code the largest active discount PepLookup tracks across any supplier alongside full certificate-of-analysis coverage: all 40 tracked listings link to an independent third-party lab document. Kalyx Labs is a US-based supplier established in 2026, currently listing 23 compounds, with 34 of the 40 associated listings in stock at last check. This Kalyx Labs review is built from prices read directly from the supplier's 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 tracked supplier. Payment runs through standard credit and debit cards. PepLookup does not sell Kalyx Labs's products: every order is placed directly on the supplier's own site, for laboratory research use only.
Highlights
The headline reason to look at Kalyx Labs is the discount: 25% off sitewide, the largest active code PepLookup currently tracks, already reflected in the prices shown. That's paired with full COA coverage all 40 listings link to an independent lab certificate. The catalogue covers 23 compounds, with 34 currently in stock. Payment runs through standard credit and debit cards. 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 Kalyx Labs's own site before ordering.
Comparison
Of the 22 compounds Kalyx Labs carries that overlap with other tracked suppliers, it did not hold the lowest cost per mg on any of them before the discount code is applied. PepLookup tracks 89 other suppliers, ranking by cost per milligram rather than headline price. Kalyx Labs's 25% code larger than nearly every other tracked discount may shift that picture significantly at checkout; check the comparison table with the code applied.
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