If you are reading about copper peptide side effects, the concern applies almost exclusively to injectable use
Cognition in aged rhesus monkeys: effect of DHEA and correlation with steroidogenic gene expression
For this reason, BPC-157 studies should ideally report analytical verification, solvent conditions, storage conditions, reconstitution approach, experimental timing, concentration or exposure parameters appropriate to the model, and endpoint definitions
Neuroendocrine Links to Sleep Patterns Growth hormone release is tightly linked with circadian rhythm and sleep regulation
EBioMedicine 90 , 104511 (2023)
Perifollicular Pigmentation (Peripilar Sign) A brown or dark halo visible around hair follicles under trichoscopy