About
Research peptidesyou can verify
Pure Science. Elevated Research. Puritide Research is a US-based supplier of research peptides made in the USA, independently tested lot by lot, with the assay results published so you never have to take our word for it.
Independently verified
Purity and identity are confirmed by third-party HPLC and mass spectrometry. The lab that runs the assay is not the party that supplies the material, so the result is an outside check rather than a self-report.
A certificate of analysis on every lot
Each batch ships with its own COA rather than a generic specimen document. You can look up the assay for the exact lot printed on your vial before it arrives.
Traceable to the lot
Every vial carries a lot number that maps to a specific batch and its published assay results, so a result can always be tied back to the material it came from.
What we actually do
Puritide Research sources research peptides from a qualified domestic synthesis partner and supplies them to laboratories and independent researchers in the United States. The peptides are made in the USA. What we do not do is run the synthesis ourselves, and we think saying that plainly is the point. Plenty of suppliers in this space describe themselves as manufacturers because it sounds like control. What actually protects a researcher is not who ran the coupling steps, it is whether the material in the vial was independently measured and whether those measurements are published.
So that is where the effort goes. Every lot is assayed by an outside laboratory before it is released, using HPLC to establish purity and mass spectrometry to confirm the compound is what the label says. The certificate of analysis for that specific lot is published and searchable, tied to the lot number printed on the vial. If the assay for your batch is not available, the batch does not ship.
How material is released
- Compounds are made in the USA, sourced from a qualified domestic synthesis partner against a defined specification.
- Each lot is submitted to an independent laboratory for HPLC purity and mass-spectrometry identity testing.
- Results are reviewed against the 99% or greater specification and published as a lot-specific certificate of analysis.
- Material is stored and shipped lyophilized for stability, sealed, and labelled with the lot number that maps to its assay.
- Orders ship via UPS within the United States, typically 1 to 5 business days after a 0 to 1 day handling window.
Common questions
Does Puritide Research manufacture its own peptides?
No. Puritide Research is a supplier. The peptides are made in the USA by a domestic synthesis partner, and we independently verify each lot before release. We are deliberate about drawing that line, because a supplier that claims to run its own synthesis is telling you something you cannot check.
Are the peptides made in the USA?
Yes. Synthesis and fill happen domestically. What we do not claim is that Puritide performs that work, because we do not. American origin and in-house manufacturing are two different claims, and only the first one is ours to make.
What does third-party tested actually mean here?
Each lot is assayed by an independent laboratory using high-performance liquid chromatography for purity and mass spectrometry for identity. Those results are published per lot on our certificates page, not summarized into a marketing number.
What is the purity specification?
Compounds are specified at 99% or greater purity. The COA for your specific lot reports the measured figure for that batch, which is the number that matters.
Who is this material sold to, and for what?
Laboratories and independent researchers in the United States, strictly for in-vitro and laboratory research use. Nothing sold here is a drug, supplement, or food, and nothing is intended for human or veterinary use.
Research use only
Every product supplied by Puritide Research is sold strictly for laboratory research use. None of it is a drug, a supplement, or a food, and none of it is intended for human or veterinary use, diagnosis, treatment, or consumption. Purchasers are responsible for handling these materials in line with the regulations that apply to their institution and jurisdiction. See the research use only disclaimer for the full terms.