Vitamin B12 is primarily found in animal-based foods, including beef, salmon, yogurt, and milk, though some plant-based foods, like nutritional yeast, are fortified with it
This not only means you miss out on the amino acids, but it can also lead to bloating and discomfort
In fact, it had been documented more than ten years earlier that when ascorbic acid and glutathione are together in the presence of the hexoxidase [ascorbate oxidase] described by Szent-Gyorgyi the glutathione wholly protects the vitamin from oxidation, whilst it is itself oxidized at a rate which, with the same concentration of enzyme, is exactly the same as the rate with which ascorbic acid is oxidized when alone. (Hopkins and Morgan 1938)
Supplementing with glutamine can support immune function and aid in muscle recovery
Extrapolating from improves skin appearance in topical formulations and modulates repair-related genes in cultured cells to drives whole-body tissue regeneration when injected as part of a blend is a substantial leap that the cosmetic literature does not underwrite
