Vendor transparency
What a research-material supplier should be willing to show you
Peptides Made Clear does not sell peptides. This section explains how suppliers are documented, what testing evidence is worth checking, and the standards every vendor entry has to meet before it is published.
Vendor directory
A running list of research-material suppliers, each described by what can be verified in public: company location, how long they have been operating, which compounds they list, and whether analytical documentation is published rather than promised. Listings are editorial entries, not endorsements, and nothing on this site is sold.
Compare vendors
Side-by-side comparison of the attributes that actually distinguish suppliers: independence of the testing laboratory, batch-level versus product-level documentation, purity method used (HPLC, mass spectrometry), reconstitution and storage guidance quality, and how clearly research-use-only status is communicated.
Testing & transparency
A certificate of analysis is only meaningful when it names the laboratory, the batch, the analytical method, and the date. We describe what a complete certificate contains, which omissions matter, and why identity confirmation by mass spectrometry is not interchangeable with a purity percentage from chromatography.
Deals & offers
Where suppliers publish promotional pricing, we record it as a factual observation with the date it was seen. Price is never treated as a quality signal, and a discount never changes how a compound's evidence is graded on this site.
Vendor review standards
Every vendor entry follows the same checklist, is written from documentation the supplier makes public, and is dated. Claims we cannot verify are marked unverified rather than omitted. Corrections are welcome and are logged with the change that was made.
For vendors: get listed
Suppliers may submit documentation for review: current certificates of analysis with laboratory attribution, batch identifiers, storage and handling guidance, and a statement of research-use-only status. Submissions are reviewed editorially; placement cannot be purchased.
Evidence first, supplier second
Supplier documentation says nothing about whether a compound has been studied in humans. Check the research stage before anything else.