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However, the results are consistent and the mechanism makes sense
reduced glutathione (GSH) is the active form that has the ability to repair oxidative damage, and oxidized glutathione (GSSG) is the inactive form that can be recycled back into GSH
In cosmetic products, it can be either plant-derived (most commonly from sugar beets) or synthetically produced for consistency and stability
The most effective approach combines NAC (600-1,200 mg daily) for cysteine, glycine supplementation (5-15g daily) to correct deficiency, whey protein (20-40g daily), selenium (200 mcg), and sulforaphane from cruciferous vegetables
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