Trusted Reviews for Research Peptides

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Vendor Comparison

Side-by-side comparison of ratings, prices, peptides, and lab results.

Featured Vendor

Oath Research

4.8 rating(73 reviews)

Premium research peptides. Third-party lab tested. For research purposes only.

Penelope Z.

"Semaglutide order, two day shipping, lyophilized cake intact and the batch report scanned right away. Reliable."

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Recent Reviews

All vendors
Jun 17, 2026
COA was not batch specific
Connor V. reviewed Zenith Research

Ordered the CJC-1295 and when it arrived I went looking for the certificate of analysis. What was in the box was a generic COA for the compound, not one tied to my actual batch number. I emailed Zenith to ask for the batch-specific report and it took most of a week to get a reply. Eventually they sent something over but it felt like pulling teeth for what should be standard. The vials looked okay otherwise, just disappointed in the testing paperwork.

Jun 17, 2026
quick shipping
Brandon L. reviewed Core Peptides

Two days from order to door. Box was plain and nothing rattled around. Would order again.

Jun 17, 2026
two weeks of silence
Bianca Z. reviewed Receptor Chem

Paid and then heard absolutely nothing. No dispatch email, no tracking, nothing for over a fortnight. It did eventually turn up and the product itself was okay, but being left in the dark that long after handing over money is not a great look.