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It is worth being honest that the strength of the clinical evidence varies by use: antioxidant and detoxification support is well grounded in physiology, while a narrative review of glutathione for skin lightening found mixed and inconsistent results

CELLULAR ANTIOXIDANT & LIVER SUPPORT: As a primary endogenous antioxidant, glutathione acts as a vital free radical scavenger at the cellular level

[22] After absorption into plasma, glutathione needs to be broken down into amino acids and re-synthesized intracellularly

So, a healthy liver is vital for good its levels

Free radical stress protector