Will peptides fail a drug test?

It depends on the test and the compound. Normal workplace drug tests generally do not look for research peptides at all. But anti-doping tests in sport do target several of them. This site's legal data lists BPC-157, TB-500, ipamorelin, CJC-1295, and GHRP-2 as banned in sport under the World Anti-Doping Agency code. Each one is listed on its own, not as a blanket rule for all peptides.

Educational use only. This database summarizes published research and is not medical advice. Where a dose appears it is a record of what a trial or clinic ran, or what people describe doing, with its source attached. Nothing here is a recommendation for personal use.

Part of research peptides, the category. What research peptides are, legally and practically, before getting into specific compounds.