Puritas+
American Research Peptides Third-party lab-tested — COA on every batch. Made in the USA.
Made in the USA
Synthesized in Florida — not reshipped from overseas
Third-party tested
HPLC purity + mass-spec identity, per batch
Same-day dispatch
Order before 14:00 ET — ships from Florida, USPS Priority
Research use only
Batch-traceable. COA on every product.
Exactly what the label says. Nothing else.
Targeted by research area.
Metabolic & GLP
GLP-class research compounds for metabolic-signaling work.
Explore →
Recovery & Repair
Tissue, tendon, and gut-barrier research peptides.
Explore →
Cognitive
Neurotrophic and cognition research compounds.
Explore →
Skin & Anti-aging
Collagen, ECM, and skin-cell research peptides.
Explore →
Reference-grade peptides.
Synthesized in Florida. Shipped from Florida. Same day.
Everything you need to know.
Our synthesis process, laboratory verification protocols, and research-use guidance.
What purity level are your peptides, and how is it verified? +
Every batch targets ≥99% purity, measured by reverse-phase HPLC, with identity confirmed by mass spectrometry. Both results are recorded on a lot-matched Certificate of Analysis.
What is a Certificate of Analysis (COA) and how do I read it? +
A COA documents identity, purity, and content for one specific lot. The lot number on the certificate matches the number on your vial — purity by HPLC, identity by mass spec, tested by an independent lab. See a sample COA →
Where are your peptides manufactured? +
Synthesized, tested, and fulfilled in Florida, USA — never relabeled from overseas bulk. Domestic synthesis means a shorter chain of custody and a process we can stand behind by name.
How should I store peptides? +
Lyophilized powder stores sealed at −20°C, protected from light. Reconstitute per your laboratory protocol. Handling guidance only — not usage instruction.
How fast do you ship, and is cold shipping required? +
Orders placed before 14:00 ET ship the same day from Florida via USPS Priority. Lyophilized material is stable at ambient temperature for standard transit times.
Take 10% off your first order.
Join the Puritas list for new-compound drops, restocks, and quality-documentation updates. We’ll send your code — or use it now at checkout.
The standard for research integrity.
Premium research-grade peptides, American-made and engineered for precision. Tested, traceable, and verified for absolute purity — with a Certificate of Analysis on every order.
For researchers, 21 and over.
Puritas Lab supplies materials for laboratory and research use only. They are not for human or veterinary consumption and are not intended to diagnose, treat, cure, or prevent any disease. By entering, you confirm you are at least 21 years of age and acquiring these materials for legitimate research purposes.
Access to this site constitutes acceptance of our Research-Use Terms. Nothing on this site is an offer to sell, or a solicitation to buy, any product for human use.