Practical guides for working with research peptides — how to read the documentation, how the testing is done, how to evaluate a supplier, and how to store and reconstitute material. Everything here is written for laboratory research use. None of it is dosing, administration, or medical guidance.
How to Read a Peptide Certificate of Analysis (COA)
A field-by-field guide to reading a peptide Certificate of Analysis — batch and lot numbers, HPLC purity, mass-spec identity, and matching a COA to your vial.
HPLC and Mass Spectrometry: How Research Peptides Are Tested
An introduction to the two analytical methods behind a peptide COA — reversed-phase HPLC for purity and mass spectrometry for identity — and what their results do and don’t tell you.
How to Vet a Research Peptide Supplier
A practical checklist for evaluating a research peptide vendor — batch-level COAs, testing transparency, storage and shipping practice, business identity, and the claims to be skeptical of.
Storing Lyophilized and Reconstituted Research Peptides
General laboratory guidance on storing lyophilized peptides and handling them after reconstitution — temperature, light, freeze-thaw cycles, and shelf-life considerations.
Reconstituting a Research Peptide Vial: A Worked Example
A worked laboratory example of reconstituting a lyophilized peptide vial with bacteriostatic water, including how to calculate stock-solution concentration for a given volume.
For Research Use Only. All compounds sold by Summit Labs are intended solely for in vitro research and laboratory use. Not for human or veterinary consumption.