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Richies 2015 randomized controlled trial found that daily oral glutathione supplementation at 250 mg or 1,000 mg for six months increased GSH levels by 30-35% in red blood cells, plasma, and immune cells [15]

Researchers also investigate its function in maintaining protein thiol homeostasis, regulating enzyme activity through protein glutathionylation, and serving as a cofactor for glutathione peroxidase enzymes that neutralize lipid peroxides and hydrogen peroxide

Sticking to this range ensures you get the cosmetic benefits you're looking for without overwhelming the formula or your skin

In this state, most peptides are stable at 20C for 1224 months when kept in a sealed, dark container with minimal moisture exposure