difference between glutathione and nac What Are NAD NAC? Glutathione vs. NAC: Which Antioxidant

Doctors treat folate deficiency by giving people folic acid

BPC-157 influences growth factors involved in tissue repair

Systemic anti-inflammatory effects, improved endothelial function throughout circulation, or effects on neural tissues connecting to retina (lateral geniculate nucleus, visual cortex) could indirectly benefit vision

It is retained far longer, allowing a two to three month maintenance interval instead of frequent repeat dosing.

So, I think read the papers

Transferrin receptor targeting peptidesT7/T12 Transferrin receptor (TfR) is a cell-membrane-associated glycoprotein whose expression is regulated by the iron-regulatory protein system