Trust evidence,
not marketing.
Every week, people across the UK buy peptides on the strength of a marketing claim. We think they deserve the evidence first.
Whether you’re researching a peptide, comparing collagen, or trying to understand GLP-1 medicines, we help you separate evidence from marketing before you decide.
The UK reference
CoA Trust Index
Updated monthly · last verified 2026-05-18 · no vendor payment
Choose your journey
Nobody else has this
The Evidence Map
Every peptide we cover, placed by how far the evidence actually goes, left to right, and grouped by what people use it for. One glance tells you where a compound really sits. Tap any node to open it.
Human RCTs
283
peer-reviewed studies referenced across our compound pages. We show every source, so you never have to take our word for it.
What changed
Regulatory hub →- WADA WADA 2025 Prohibited List in force. BPC-157 explicitly named under S0 (non-approved substances). 2025-01-01
- FDA FDA Category 1 Bulk Drug Substances list update. Several research peptides remain off the 503A approved list. 2024-10-24
- MHRA MHRA action on unlicensed semaglutide and tirzepatide supply. Letters issued to UK sellers marketing for weight loss. 2024-06-13
- EMA EMA PRAC concludes GLP-1 receptor agonist suicidal ideation signal review. No causal association established. 2024-03-21
Evidence, rated plainly
One scale, on every compound. Filled pips show how far the evidence goes: animal work, mixed human data, or human randomised trials. Never hype.
Become a smarter buyer
Learn to verify quality yourself, so you never have to take a vendor’s word for it.
How to verify a CoA
The unique key you check at the lab’s own portal is the only proof the numbers are real. A PDF can be forged in minutes.
What HPLC purity means
Reused chromatograms, no batch number, a mismatched mass. The tells a vendor will never point out to you.
Third-party vs in-house
Why a named, independent lab beats a self-reported figure, and what "research use only" means in UK law.
The independent CoA Trust Index
Every UK research-peptide retailer, graded A to E on certificate transparency. No vendor payment, ever. We publish the fails too.
What we are not
- · We are not a pharmacy. We do not dispense medication.
- · We are not a clinic. We do not prescribe.
- · We do not sell research peptides. We score UK retailers on transparency and link out.
- · We do not promise weight loss numbers, before/after photos, or specific results.
- · We do not recommend a specific medication or supplement to a specific person.
We summarise UK peptide categories in plain English and score suppliers on observable, published signals. We take no vendor payment, and it never changes how we score. The decision is yours. For prescription medicine the prescriber decides. For research peptides the retailer’s "research use only" framing applies.