If you use strong actives, consider separating applications (different times of day) and introducing one change at a time.
[DOI] [PMC free article] [PubMed] [Google Scholar] 45.Lima C.S., Ferreira-Silva S.L., Carvalho F.E.L., Lima Neto M.C., Arago R.M., Silva E.N., Sousa R.M.J., Silveira J.A.G
Identification by mutagenesis of conserved arginine and tryptophan residues in rat liver carnitine palmitoyltransferase I important for catalytic activity
Govoni KE, Lee SK, Chung Y-S, Behringer RR, Wergedal JE, Baylink DJ, et al
Alterations in membrane molecular dynamics in erythrocytes of patients with affective illness Depression 1993
For more information about the regulatory status of peptides like BPC-157, you can visit the US Anti-Doping Agency's resource on BPC-157, which provides important information for competitive athletes