Research guides
The fundamentals behind every compound page.
How to reconstitute peptides
Lyophilised (freeze-dried) peptides have to be dissolved before use. Doing it carefully protects the peptide and makes every later measurement accurate.
Bacteriostatic water (bac water) explained
“Bac water” is the standard liquid for dissolving lyophilised peptides because its preservative lets one vial be used many times.
Peptide storage and stability
Most peptide degradation happens through heat, moisture, light and repeated temperature cycling. Good storage is simple once you know which state the peptide is in.
How to read a peptide certificate of analysis (COA)
A certificate of analysis is the only evidence you have that a vial contains what the label says. Here is how to tell a meaningful one from a decorative one.
Converting syringe units to mg and mcg
Syringe “units” measure volume, not amount. The amount of peptide in 10 units depends entirely on how the vial was reconstituted.
GLP-1 drugs and their brand names
Most confusion about weight-loss injections comes from brand names. Here is which molecule is behind each one.
The “retatrutide pen”: what you need to know
Searches for “retatrutide pen” have exploded. The short answer: Eli Lilly does not sell one, because retatrutide is not yet approved anywhere.
Buying research peptides in the UK: what to check
The UK has dozens of online peptide suppliers. Quality varies widely, and labelling alone tells you very little. These are the checks that matter.
Peptides and UK law
Most research peptides occupy a grey zone in UK law: legal to buy and possess, illegal to sell as medicines.
Peptide stacks and blends
“Stacking” means using two or more peptides together. Pre-mixed blends make it convenient — but they also lock in the ratio.