5.0
The order arrived on time and was accurate, and the reviewer reported a positive experience with the process.
Alan
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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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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.
Offline Peptides is a U.S. research peptide supplier offering 99%+ HPLC-verified purity, third-party COAs, batch testing and same-day shipping.
Before you order
Product catalog
$0.70/mg · seen 1mo ago
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$4.20/mg · seen 1mo ago
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$2.00/mg · seen 1mo ago
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$13.00/mg · seen 1mo ago
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$4.20/mg · seen 1mo ago
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$4.20/mg · seen 1mo ago
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$3.90/mg · seen 1mo ago
View COA
$7.40/mg · seen 1mo ago
View COA
$6.40/mg · seen 1mo ago
View COATested by Third-party laboratory
Overview
Offline Peptides is a U.S.-based research supplier founded in 2025, offering laboratory peptide products with research documentation and batch information. They use a third-party laboratory for testing and ship domestically within the United States.
Highlights
Researchers choose Offline Peptides for their U.S.-based fulfillment and third-party testing. The supplier provides batch documentation and research-use products for qualified purchasers.
Comparison
Offline Peptides is a straightforward U.S.-based supplier with third-party testing. They do not publicly list shipping speed, payment methods, or coupon codes, which means less transparency than some competitors. Use the price comparison table above to compare per-mg pricing.
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