About
Documentation is the product.
TOP Pep — also written Toppep or Top Pep — started from a simple frustration: research material sold on trust alone, with no paper to back it. We fixed the paper first, then built the catalog around it.
2026
Founded
1
Source per compound
100%
Lots documented
The standard
Proof before promises
Anyone can call a vial “high purity.” We publish the number, tie it to your lot, and let the certificate do the talking. If a lot doesn’t pass, it doesn’t ship — there’s no version of the story where marketing outruns the data.
How we test →
Who it’s for
Made for people who read the COA
Our customers are labs, students, and independent researchers who care what’s actually in the vial. We build for the person who checks the lot number — because that person is right to.
Browse the COA library →