Peptide research summaries
What published studies report about each compound sold here: who was studied and how, what each study measured and what it found, with every finding linked to its DOI or PubMed record. Each summary says how strong the evidence is, whether it comes from cell, animal or human studies, and what is not yet known. Summaries are a laboratory research reference, not advice about use in people or animals.
-
Research summary
BPC-157: what the published research reports
BPC-157 is a synthetic 15-amino-acid peptide studied mainly in cell culture and rodent models of tissue injury. A 2025 review found only three small human pilot studies and called it investigational.
-
Research summary
Retatrutide: what the published trials report
Retatrutide is a single peptide that acts at three receptors: GIP, GLP-1 and glucagon. It has been tested in phase 1, phase 2 and phase 3 trials, and the results below are what those papers report.
-
Research summary
Tesamorelin: what the published research reports
Tesamorelin is a stabilised analogue of growth hormone-releasing hormone that stimulates growth hormone release from the pituitary. Its evidence comes mainly from randomised trials in people with HIV, where it has an approved use in the United States.