What the research shows
A randomized, double-blind trial enrolled 117 adults undergoing bowel surgery. The median time to tolerate a solid meal was 25.3 hours with ipamorelin and 32.6 hours with placebo. The difference fell short of statistical significance. The authors also found no significant difference on their secondary efficacy measures. Read the postoperative trial.
Raun and colleagues described the peptide’s unusual building blocks and tested growth hormone release in laboratory and animal experiments. See the original peptide study.
Documented formats
The bowel study used a liquid study preparation and a matching placebo in hospitalized patients. Its results concern recovery after surgery.
Testing and purity
Compare the sequence and the D-form amino acids with the original description. Ordinary mass measurements alone cannot resolve mirror-image forms of the same amino acid.
How to read a batch reportQuestions about Ipamorelin
What did tolerating a meal measure?
It gave the researchers a practical measure of bowel recovery. They timed when a patient could eat a standardized solid meal.
Did this trial measure muscle gain?
Its endpoints concerned postoperative gut function. A body-composition claim would require a study that measured changes in muscle.