Reference

Research peptide guides

Reference material on how peptides are characterised, what a certificate of analysis actually reports, and the rules governing research-use supply. Written to be checkable rather than persuasive.

How to store research peptidesHow lyophilized research peptides are stored, why sealed desiccated powder is stable at ambient temperature, and the three variables that actually degrade material.
Are research peptides legal in the United States?Research peptides are legal to supply and possess for laboratory research in the US. What research use only excludes, and where the legal line actually sits.
How to read a peptide certificate of analysisWhat a peptide certificate of analysis reports, how to check it against the vial in front of you, and what separates a real COA from a marketing document.
HPLC purity testing for peptidesHow HPLC measures peptide purity, what a percentage of peak area represents, and why the detection wavelength matters as much as the number itself.
What are lyophilized peptides?Lyophilization freeze-dries a peptide into a dry solid. What the process does, why it makes material stable in transit, and what a lyophilized cake should look like.
Purity and net peptide content are not the same measurementPurity and net peptide content measure different things, and conflating them is the most common misreading of a certificate. What each reports and why both matter.
What research use only actually meansResearch use only describes what is being supplied, not a disclaimer. What it commits a supplier to, and how to tell whether it is being taken seriously.
How to evaluate a research peptide supplierNine checks that separate a supplier publishing evidence from one publishing claims, including how to test whether a certificate of analysis is real.

What is not here, and why

There is no guide to reconstituting peptides. It is the most-searched question in this category by a wide margin, and answering it would contradict what this site states everywhere else: we do not provide dosing, administration or reconstitution guidance for human or animal use, in any channel.

Storage and handling of sealed material is a different question, and one we can answer — see how to store research peptides and the per-compound notes under handling.

For laboratory research use only. Not for human or veterinary consumption.