Study summaryMazdutide in phase 3: what the obesity trial reported
A dual GLP-1 and glucagon receptor agonist completed a large phase 3 trial in China. Here is what the researchers measured, in plain English.
10 October 2026 · 5 min read
Research Library
Peptide research, made clear
The question, the findings and the gaps — with links to the original studies.
Study summaryStudy summaryTesamorelin: the trials behind an approved use abroad
Tesamorelin is one of the few peptides in this library that went through full trials and was approved in the US. What did those studies actually show?
6 October 2026 · 5 min read
Evidence checkGHK-Cu and skin: what the research has and has not shown
A copper-binding peptide found naturally in the body has a long research history in skin and wound studies. Most of it was done in the lab.
1 October 2026 · 5 min read
Study summaryPT-141 (bremelanotide): what the RECONNECT trials reported
Bremelanotide went through phase 3 trials for low sexual desire in women and was approved in the US in 2019. Here is what was measured.
26 September 2026 · 4 min read
MethodsWhy a mouse result is not a human result
Many peptide claims online trace back to animal or cell studies. This plain-English guide explains the stages of research and why each one matters.
21 September 2026 · 5 min read
Evidence checkFive signs a peptide claim is overstated
A short checklist for reading peptide content online — including on supplier and social media pages.
16 September 2026 · 4 min read
Study summaryWhat the phase 2 retatrutide trials reported
A triple-receptor agonist reached phase 2 in obesity and type 2 diabetes. This is what the published papers described — and what they did not.
24 August 2026 · 6 min read
MethodsHow to read a certificate of analysis
A COA is an analytical document, not a marketing one. Five checks separate a report that could fail from a decorative PDF.
18 August 2026 · 5 min read
Evidence checkBPC-157: reading the preclinical evidence honestly
One of the most-published research peptides has a genuine literature base and a firm ceiling on what that literature can support.
11 August 2026 · 6 min read
RegulationThe UK regulatory position on research peptides, in plain terms
Not a licensed medicine, not a food supplement. What that classification actually means, and where most confusion comes from.
4 August 2026 · 5 min read
MethodsWhy two “99% pure” reports are not describing the same thing
Purity is a ratio between detected peaks, not a mass balance. Understanding that difference explains most disagreements about peptide quality.
28 July 2026 · 4 min read
MethodsPeptide stability: what the degradation literature reports
Analytical documentation describes material at the moment of testing. Stability research describes what happens to it afterwards.
21 July 2026 · 5 min read
Articles are published for research and educational reference only. They contain no dosing, administration or acquisition guidance, and they are not medical advice.