The human data cannot settle safety.
The FDA reviews medicines in the US. Its reviewers lacked enough information from people to judge BPC-157’s safety. That review was checked on September 28, 2026.
The studies were brief and involved few people. Most did not clearly explain how they checked for harm.
FDA reviewers were concerned that the body might treat BPC-157 as a threat and react against it. Such reactions can range from no noticeable symptoms to life-threatening harm. Clumps of BPC-157 or other substances left in a batch could raise that risk.
This is a concern about possible reactions. No study has measured how often these reactions happen in people using BPC-157.