The specific sequence (Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val) does not occur in an isolated form, making BPC-157 a laboratory-synthesized compound
The FAST trial challenges this, and it may well be that they are equally protective
In summary, each vitamin in this injection is either Category A (pyridoxine) or exempt but considered safe at normal intake (thiamine, riboflavin, pantothenic), except niacin which is Category C at high doses but likely safe at modest doses
Safety, pharmacokinetics, and preliminary assessment of efficacy of mecasermin (recombinant human IGF-1) for the treatment of Rett syndrome
Lloyd-Turner, S., Peters, J., & Harrison, L
It is also used to manage vitamin B12 deficiencies resulting from specific surgeries, diseases of the stomach or gut, and any other genetic disorders affecting vitamin B12 metabolism