Lets break it down by the three major governing bodies that influence whether you can legally use or recommend BPC-157: FDA (Food and Drug Administration United States) BPC-157 is not FDA approved for any use in humans or animals
For patients with persistent symptoms despite optimal thyroid hormone replacement, further investigation may be warranted to exclude other conditions such as coeliac disease , vitamin D deficiency, iron deficiency anaemia, or depression, all of which are more common in individuals with autoimmune thyroid disease
International journal of molecular sciences .Feb 11 2019;20(3)doi:10.3390/ijms20030765
Mol Cell 8:11051115 Petersen JL, Lang DW, Small GD (1999) Cloning and characterization of a class II DNA photolyase from Chlamydomonas
Cellular Energy NAD+ & Sirtuines NAD+ Restoration & Mitochondrial Function By preserving the NAD+ pool, 5-Amino-1MQ supports the mitochondrial electron transport chain and the activation of sirtuins (SIRT1-7)