Research-Grade Compounds

Precision peptides, engineered for research.

Third-party tested purity and transparent COAs. Tell us what you are researching.

≥99% Purity

HPLC and mass-spec verified on every batch, with a COA available.

Third-Party Tested

Independent lab analysis and transparent certificates for every product.

Fast, Discreet Shipping

2-day shipping, temperature-controlled and tracked to your door.

Featured Compounds

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Colossus Bio Labs Retatrutide research vial

Flagship Compound

Retatrutide, a triple receptor agonist

A GLP-1 / GIP / glucagon triple receptor agonist, supplied as lyophilized powder in 10 to 60 mg vials. Third-party tested to ≥99% purity with a certificate of analysis. Buy 5 or more and save 5% automatically. For laboratory research use only.

Need bulk or custom quantities?

Talk to our team about volume pricing, COAs, and supply agreements for research programs.