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Buettner 1993 C and E recharge each other The Pecking Order of Free Radicals and Antioxidants: Lipid Peroxidation, α-Tocopherol, and Ascorbate "Although vitamin E is located in membranes and vitamin C is located in aqueous phases, vitamin C is able to recycle vitamin E; i.e., vitamin C repairs the tocopheroxyl (chromanoxyl) radical of vitamin E, thereby permitting vitamin E to function again as a free radical chain-breaking antioxidant. " BuettnerG.R. https://www.sciencedirect.com/science/article/pii/S000398618371074X Niki 1987 C regenerates E, E regenerates C Interaction of Ascorbate and α‐Tocopherol ETSUO NIKI First published: July 1987 https://doi.org/10.1111/j.1749-6632.1987.tb23761.x

Smirnoff 2007 "ascorbate can directly regenerate tocopheryl radicals back to the reduced tocopherol form" Ascorbate, Tocopherol and Carotenoids: Metabolism, Pathway Engineering and Functions Nicholas Smirnoff First published: 12 November 2007 https://doi.org/10.1002/9780470988565.ch3