A quick reference to the questions researchers ask most often about sourcing and handling research peptides. For educational reference only.
What does “research use only” mean?
Research-use-only (RUO) compounds are intended strictly for laboratory research. They are not approved or intended for human or animal consumption, diagnostic use, or therapeutic use.
What is a Certificate of Analysis (COA)?
A COA is a lab report documenting a compound’s identity and purity. A quality COA is batch-specific, lists a lot number matching your vial, and includes HPLC purity and mass-spectrometry identity data. Learn more in our guide on how to read a peptide COA.
How are research peptides shipped?
Peptides are shipped as lyophilized (freeze-dried) powder, which is stable for transport. Greatest Peptides ships from the US with same-day dispatch on orders placed by 3 PM EST.
How do I reconstitute a peptide?
Lyophilized peptides are dissolved in bacteriostatic water before handling. See our step-by-step reconstitution guide.
How should peptides be stored?
Store lyophilized powder at -20°C and reconstituted solution refrigerated, away from light. See our storage guide for details.
What purity should I look for?
HPLC purity of 98% or higher is generally considered research-grade, with 99%+ considered excellent. Always verify against the batch-specific COA.
Where can I see the product catalog?
Browse all compounds in the research peptide catalog.
For laboratory and research use only. Not for human or animal consumption.