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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
BioPeptide Technologies
LA Peptides
Main Peptides
Northline Labs
Peak Lab Peptides
Royal Peptides
Ventra Sciences
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.
Peak Lab Peptides is a U.S. research peptide supplier offering 99%+ purity, independent HPLC/MS testing, batch COAs and same-day fulfillment.
Before you order
Product catalog
$6.20/mg · seen 1mo ago
View COA
$4.45/mg · seen 1mo ago
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$0.26/mg · seen 1mo ago
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$0.10/mg · seen 1mo ago
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$9.50/mg · seen 1mo ago
View COA
$3.20/mg · seen 1mo ago
View COA
$6.00/mg · seen 1mo ago
View COA
$7.60/mg · seen 1mo ago
View COA
$0.037/mg · seen 1mo ago
View COATested by Independent USA-based laboratories
Overview
Peak Lab Peptides is a U.S.-based research peptide supplier founded in 2025. They use independent USA-based laboratories for third-party HPLC and mass-spectrometry testing with batch-specific COA documents and purity verification. Delivery takes 1 to 5 days depending on location and shipping method. They accept credit cards and Zelle.
Highlights
Researchers choose Peak Lab Peptides for their USA-based independent laboratory testing, batch-specific COA documentation, and Zelle payment option. The reference to USA-based labs provides geographic specificity that most competitors do not offer for their testing claims.
Comparison
Peak Lab Peptides specifies USA-based independent laboratories for testing, which is more specific than the generic third-party references used by many competitors. They do not list a coupon code. Payment is limited to credit cards and Zelle. Use the price comparison table above to compare per-mg pricing.
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