Where to start with research peptides
New to research peptides? Three things matter most: confirm what you have with a Certificate of Analysis, store lyophilized material cold, sealed, and out of light, and reconstitute it accurately before use. This hub walks through each one in plain language, with deeper guides, compound profiles, and a free reconstitution calculator.
Start here
A short, practical path for getting oriented. Begin with the frequently asked questions below for the points most people check first, then use the Peptide Reconstitution Calculator to work out exact mixing volumes. From there, the compound profiles in the Research Library cover individual peptides in detail, including how they work and what the research shows.
Quality and testing
Every credible peptide ships with a Certificate of Analysis, or COA. A good COA names four things: the compound identity, the batch or lot number, the measured purity, and the lab that did the testing. Purity is verified by HPLC-MS, which separates the sample and weighs its components so the stated percentage is backed by data, not a claim. Look for 98% or higher, ideally 99%+. Our guide on reading a COA breaks down each line item.
Storage basics
Lyophilized (freeze-dried) peptides are most stable when kept frozen (around -20 C), sealed, and away from light and humidity. For long-term holding, frozen is best; short-term, refrigerated is fine. Once reconstituted, peptides are kept refrigerated and used within their stable window, which varies by compound, so consult the literature specific to the material. The compound profiles note specifics where they differ.
From the blog
The Research Library holds the full archive of articles, compound profiles, and comparisons. Start with the complete guide to research peptides in Canada, or browse by category.
Frequently asked questions
Are research peptides legal in Canada?
Research peptides are sold within the well-established research-compound category, intended for laboratory and research use. The “research use” label is a standard distribution designation, not a comment on a compound’s quality or promise. Several compounds that began in this category later became approved products. Our regulations guide explains how the framework works.
What is a Certificate of Analysis?
A COA is the lab document that verifies a peptide’s identity, batch, purity, and the testing lab. It is your proof that what is on the label matches what is in the vial.
How do I read a peptide COA?
Check four things: the compound name and sequence, the lot number, the purity percentage (98% or higher, ideally 99%+), and the name of the testing lab and method (HPLC-MS).
What does HPLC-MS testing tell you?
It separates a sample and measures each component by mass, confirming both identity and exact purity. It is the standard for verifying peptide quality.
How should I store lyophilized peptides?
Frozen (around -20 C), sealed, and away from light and humidity for long-term holding; refrigerated is fine short-term. Minimise repeated freeze-thaw cycles.
How do I reconstitute a peptide?
You add bacteriostatic water to the lyophilized powder to reach a target concentration. The Peptide Reconstitution Calculator does the math for you.
What purity should I look for?
98% or higher, with the best material at 99%+, confirmed by HPLC-MS on a COA tied to the specific batch.
For laboratory and research use only.