Start Here: Research Peptide Basics for Newcomers

PeptideTally Team

New to research peptides? This thread covers the fundamentals.

**What are research peptides?** Research peptides are synthetic chains of amino acids supplied strictly for laboratory and research use. They are not approved for human consumption.

**What should I look for in a vendor?** The single most important factor is a Certificate of Analysis (COA) from a named third-party laboratory, ideally with both HPLC (purity) and mass spectrometry (identity) data. See our [vendor comparison table](/vendors) for a ranked breakdown.

**How do I verify a COA?** Check the compound name, the stated purity percentage, the testing method, and whether the issuing lab is identified and contactable. Our [COA guide](/blog/how-to-read-a-peptide-certificate-of-analysis) walks through this line by line.

**Where do I calculate reconstitution?** Use our [peptide calculator](/peptide-calculator) to work out concentration and syringe units.

Ask any follow-up questions below.