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It is especially important for the regular operation of dysfunctional mitochondria, helping to remove toxins and playing a vital role in energy production and expenditure in cells

[DOI] [PMC free article] [PubMed] [Google Scholar] 26.Reid S.N.S., Ryu J.K., Kim Y.S., Jeon B.H

Intracellular glutathione acts on the "front line," neutralizing reactive oxygen and nitrogen species and protecting lipids, proteins, and DNA from damage

A serum combining both in one formula is a formulation conflict, not a synergy

Therefore, if your main goal is achieving brighter, more even skin, Glutathione IV is the better option, while NAD