• Third-party COA on every lot
  • Ships same business day
  • Plain, sealed packaging
PERFECT PEP

Quality & testing

Quality & testing

Four checks, in order. Nothing is listed, and nothing ships, until all four are on file.

01

Identity

Mass spectrometry confirms the molecular weight matches the sequence on the label.

02

Purity

Reverse-phase HPLC quantifies purity. Below 98% and the lot is rejected outright.

03

Contaminants

Endotoxin, residual solvent and heavy-metal screens on a sample from the filled vials.

04

Publication

The signed report is filed under the lot number and published in the COA lookup.

What we won't claim

We're a chemical supplier, not a pharmacy or a compounding facility. Nothing we sell is a drug, a supplement or a cosmetic, and none of it is intended for human or veterinary use.

What we will tell you

What a lot assayed at, and who tested it. Anything beyond that is your research to run.

Handling and storage

Compounds ship as lyophilized powder — shelf-stable in transit, no cold chain required. For storage past a few weeks, hold at −20°C, out of light.

Restock and new-compound alerts

One email when something lands or a lot changes. Nothing else.

PERFECT PEP Research use only

You must be 21 or older to enter.

Perfect Pep supplies research compounds for in-vitro laboratory use only — never for human or veterinary consumption. By entering you confirm you are at least 21 and agree to our Terms and RUO Agreement.