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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
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Peak Lab Peptides
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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.
ZestyRat Research is a U.S. research peptide supplier offering 99%+ purity, independent testing, batch COAs and tracked domestic fulfillment.
Exclusive ZestyRat Research offer
10% off with coupon
Before you order
Product catalog
$1.17/mg · seen 1mo ago
$3.24/mg · seen 1mo ago
$0.045/mg · seen 1mo ago
$4.20/mg · seen 1mo ago
$5.40/mg · seen 1mo ago
$7.20/mg · seen 1mo ago
$5.40/mg · seen 1mo ago
$6.84/mg · seen 1mo ago
$4.14/mg · seen 1mo ago
Tested by Third-party laboratory
No COA reports published for ZestyRat Research yet.
Overview
ZestyRat Research is a research peptide supplier founded in 2025, offering independently tested laboratory compounds with batch COAs, documented purity, and tracked domestic shipping. They ship same day on orders before 3 PM ET, with USPS Priority delivery typically arriving in 2-4 business days. ZestyRat supplies researchers in both the United States and Canada.
Highlights
Researchers choose ZestyRat Research for their independent testing with batch COAs and documented purity levels. Their coverage of both U.S. and Canadian researchers is notable, as many suppliers ship domestically within the U.S. only. Same-day shipping before 3 PM ET with tracked USPS Priority delivery keeps research timelines predictable.
Comparison
ZestyRat Research serves both the United States and Canada, expanding access beyond the U.S.-only fulfillment most competitors offer. Their 3 PM ET same-day cutoff and tracked Priority shipping are competitive. Compare their per-mg pricing on peplookup.com against other suppliers to determine the best value for your research, particularly if you need Canadian delivery.
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