Blog

What Is Lyophilisation? Why Research Peptides Are Supplied as Freeze-Dried Powder
Almost every research peptide arrives as a dry white powder rather than a liquid. Here is what lyophilisation (freeze-drying) actually does, why it matters for stability, and what it means for handling in the lab. Read more...
Retatrutide: What a Triple Receptor Agonist Actually Is
Retatrutide acts at three receptors where earlier incretin compounds acted at one or two. What that design means mechanistically, what the published trials measured, and why it complicates the arithmetic in the laboratory. Read more...
How to Read a Peptide Certificate of Analysis
A COA is the only document standing between a supplier's claim and independent evidence. Here is what each section means, which figures matter, and the specific red flags that indicate a certificate is not worth much. Read more...
Why "99% Purity" Doesn't Mean What You Think: HPLC Purity vs Net Peptide Content
Every UK peptide supplier advertises 99%+ HPLC purity, including us. Here is what that number actually measures, what it does not, and why two vials with identical purity figures can contain different amounts of peptide. Read more...
Choosing a UK Research Peptide Supplier: Nine Things Worth Checking
Every supplier in this market makes the same claims in the same words. These are the checks that actually separate them, including several you can carry out before you spend anything. Read more...