My father and I have tried almost everything from antioxidants & antiinflammatories, to all vitamins, amino acids, cruciferous and other vegetable extracts, herbs, pharmaceuticals, hormones female and male and growth hormone, peptides like epithalon, TA-65, calories restriction and you name it.
Nothing we have tried has been as powerful as 100mg oral NAG (n-acetyl-glutathione) per day.
It improved:
blood pressure (160+ systolic to 122)
kidney function (eGFR 23 to 55)
liver function
lung function
immune function
reduced inflammation (c-reactive protein reduced)
mental clarity
cognitive function
skin appearance (softer, less wrinkles, etc.)
... pretty much every organ seems to benefit.
It depletes minerals and vitamins like potassium, magnesium, zinc, etc., so we take it with a multivitamin and potassium chloride