Research notes.
How we test. Why thresholds matter. What UK researchers should look for in their supplier.
From synthesis to your bench: how every Alphex batch gets tested.
A complete walkthrough of our four-stage verification pipeline: SPPS synthesis, reverse-phase HPLC at 220nm, ESI-MS for identity confirmation, Karl Fischer for water content, LAL for endotoxin where stability allows.
Read the methodology →How to read a research peptide COA (and what to spot when it's fake).
Most COAs supplied with UK research peptides are generic, undated, or batch-mismatched. Here's which fields to check and the four red flags.
Read the breakdown →Why we set our minimum HPLC threshold at >99.80%.
Industry default is around 98%. We made our threshold 99.80% because that's where impurities stop confounding research outcomes.
Read the rationale →Storage and reconstitution: keeping lyophilised peptides intact.
Temperature, light, moisture, and reconstitution solvent all affect stability. A practical guide for UK researchers.
Read the guide →The legal status of research peptides in the UK, plainly.
Legal to purchase and possess for laboratory research. Not authorised for human or veterinary use. What that means in practice.
Read the summary →Choosing a UK research peptide supplier: the 12-point checklist.
Documentation depth, third-party verification, domestic vs overseas, COA-before-purchase, response time, and seven more.
Read the checklist →