Safety and Regulatory Considerations Across All Options None of these agents (BPC-157, TB-500, or GHK-Cu) hold FDA approval for any therapeutic indication
Proc Natl Acad Sci USA 111:49764981 Ghorbani P, Santhakumar P, Hu Q, Djiadeu P, Wolever TMS, Palaniyar N, Grasemann H (2015) Short-chain fatty acids affect cystic fibrosis airway inflammation and bacterial growth
It is composed of 15 amino acids in a very particular sequence that doesnt exist naturally
It also depends on how well the person responds to treatment and their overall health
However, the relevance of these findings to humans remains uncertain, as human thyroid C-cells have much lower expression of GLP-1 receptors compared to rodents