vitamin c serum glutathione Allies of Skin 35% & Advanced Firm + Brighten Our 35% Vitamin C+ Perfecting Serum is the world’s first and only waterless formula with a 35% concentration Numbuzin No. 5 Vitamin Concentrated

Ascorbic acid reduces blood pressure and arterial stiffness in type 2 diabetes

Dringen R. Metabolism and functions of glutathione in brain. Prog Neurobiol. 2000;62(6):649-671. doi:10.1016/s0301-0082(99)00060-x

Other ingredients Rice flour, hypromellose (cellulose capsule), microcrystalline cellulose, stearic acid (vegetable source) and silicon dioxide

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Overall , Ethyl Ascorbic Acid is a very promising but not a fully proven Vitamin C derivative