Systemic delivery via injection ensures adequate tissue concentrations while topical application provides direct contact with the scalp surface and upper follicle structures
It is essential for neutralising free radicals, cleansing the body, and boosting the immune system
Furthermore, by binding with heavy metals, pesticides, and metabolic byproducts, glutathione reduces the liver's toxic load, protecting it from damage
This is consistent with the peptides effect on dermal papilla cells, and it happens whether or not the patient was targeting hair specifically
For readers primarily interested in hair applications, topical is the evidence-supported route
It stimulates blood vessel and nerve outgrowth and increases collagen, elastin, and glycosaminoglycan synthesis