L-Glutathione is the body's master antioxidant and essential detoxification molecule, present in every cell. It is a tripeptide composed of glutamine, cysteine, and glycine. Its primary function is to neutralize harmful free radicals, recycle other antioxidants like Vitamin C and E, and support liver detoxification pathways. Maintaining optimal glutathione levels is crucial for immune system function, cellular protection from oxidative stress, and promoting overall metabolic and neurological health. Liposomal or other enhanced delivery forms are often researched to improve its bioavailability.