Where people buy these compounds
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Everything listed here is sold for laboratory research use. It is not approved for human use, and no vendor listed is a pharmacy. Third-party purity testing is the only meaningful quality signal in this market, so check that a batch has a current certificate of analysis before ordering anything.
What to check before you order
- A batch-specific certificate of analysis. A generic COA that is not tied to your batch number tells you nothing.
- Who ran the test. An in-house COA is a vendor marking its own homework. Third-party labs are the ones that matter.
- Stated purity and what the remainder is. 99% pure leaves 1% of something, and the COA should say what.
- Storage and shipping. Lyophilised powder is reasonably robust, but reconstituted product is not.
Vendors
Apollo Peptide SciencesThird-party tested, US shippingPantheon PeptidesBroad catalogue including GLP-1 compoundsAmino ClubSubscription pricingAscension PeptidesResearch catalogueLimitless LifeRarer compounds
Longer vendor write-ups, including what each one does and does not publish, are at Peptide Bureau, which is run by the same person as this calculator.
Read this before you use the numbers. This is a unit-conversion tool. It converts a vial strength and a volume of bacteriostatic water into a concentration, a draw volume and a mark on an insulin syringe. It does not tell you what to take, whether to take it, or whether a compound is safe for you. Most of the compounds listed here are sold for laboratory research use and are not approved for human use. Nothing on this site is medical advice. Dosing decisions belong with a licensed clinician who knows your history. Always confirm the strength printed on your own vial rather than trusting a preset.