RecoveryHuman study
BPC-157: what the evidence in people actually shows
A big rat literature, three tiny uncontrolled human reports and one long-silent colitis trial. Here is exactly what has been tested in people.
Human Peptide Research: plain-English breakdowns of the human research on peptides
Latest
Basics & safetyHuman study
Who should not use peptides: the screening list
Basics & safetyMeta-analysis
Research use only: what the label means in the UK and US
New human studies
All studiesBasics & safetyHuman study
Who should not use peptides: the screening list
Active cancer, pregnancy and a known allergy rule peptides out. Several other conditions need a specialist first. Here is the list, and where each item comes from.
Basics & safetyMeta-analysis
Research use only: what the label means in the UK and US
“Research use only” is a seller’s statement, not a legal category. In both countries regulators look at how a product is sold and used, and a disclaimer doesn’t settle that.
MetabolicHuman RCT
Retatrutide: what the trials show so far, and what is still a press release
Peer-reviewed trials show 24% weight loss at 48 weeks and large falls in liver fat; the headline 28% phase 3 figure is still company-reported.
Guides and safety
All researchBasics & safetyHuman study
Who should not use peptides: the screening list
Active cancer, pregnancy and a known allergy rule peptides out. Several other conditions need a specialist first. Here is the list, and where each item comes from.
MetabolicHuman RCT
Retatrutide: what the trials show so far, and what is still a press release
Peer-reviewed trials show 24% weight loss at 48 weeks and large falls in liver fat; the headline 28% phase 3 figure is still company-reported.
HormonesHuman study
Follistatin-344: the human trials used gene therapy, not an injected peptide
Every human study of follistatin-344 delivered the gene by viral vector into muscle, in a handful of patients. The protein sold in vials has no human data behind it.
First-hand experiences
Share yoursWe are collecting reader reports now. Every one is labelled self-reported, checked by an editor, and published with the protocol and duration so you can weigh it properly.