Weighting
Testing visibility
30%We look for readable COAs, lab-report visibility, batch specificity, and how easy documentation is to find from product pages.
Methodology
How we review peptide suppliers
This site uses an editorial trust-signal framework. We do not certify any supplier. We compare what each supplier makes visible on the website and how convincing that experience feels to a careful comparison shopper.
Weighting
Site clarity
25%We score how clearly the site explains products, categories, shipping basics, and policy information without forcing visitors to dig.
Weighting
Research framing
20%We want research-use-only language, disclaimers, and boundaries to feel consistent across the site rather than pasted in as an afterthought.
Weighting
Buyer fit
25%We consider whether a supplier reads as best for beginners, value shoppers, premium seekers, or fast-turnaround domestic buyers.
What we do check
Visible signals on the site
COA links, testing language, contact details, shipping promises, research-only framing, discount posture, and overall browsing quality all influence how a supplier is written up here.
What we do not claim
Not proof of purity or compliance
Even a polished site can be misleading. Rankings and reviews on this site are not substitutes for real-world due diligence, lab verification, or legal guidance.
How to use this page
Use methodology pages to understand rankings before you trust them.
The goal is to make the site more transparent. If a supplier ranks highly, you should be able to understand why. If a supplier is listed as value-focused or fast-shipping, the methodology tells you what signals support that label.
Where to go next