ANTIOXIDANT ABILITY AND STABILITY STUDIES OF 3-O-ETHYL ASCORBIC ACID 243 (21) M. Y. Kang, S. H. Kim, Y. K. Sung, M. Kim, J. C. Kim, and I. Han, Enhanced iontophoretic delivery of magnesium ascorbyl 2-phosphate and sodium fl uorescein to hairless and hairy mouse skin, J. Cosmet. Dermatol. Sci. Appl., 2, 283–287 (2012). (22) P. Nandhasri and S. Suksangpleng, Application of high performance liquid chromatography to determi- nation of seven water-soluble vitamins in white sauce, J. Sci. Soc. Thail., 12, 111–118 (1986). (23) G. Battaini, E. Monzani, L. Casella, L. Santagostini, and R. Pagliarin, Inhibition of the catecholase ac- tivity of biomimetic dinuclear copper omplexes by kojic acid, J. Biol. Inorg. Chem., 5, 262–268 (2000). (24) G. Nohynek, E. Antignac, T. Re, and H. Toutain, Safety assessment of personal care products/cosmetics and their ingredients, Toxicol. Appl. Pharmacol., 243, 239–259 (2010). (25) C. L. Burnett, W. F. Bergfeld, D. V. Belsito, R. A. Hill, C. D. Klaassen, D. C. Liebler, J. G. Marks, Jr., R. C. Shank, T. J. Slaga, P. W. Snyder, and F. A. Andersen, Final report of the safety assessment of kojic acid as used in cosmetics, Int. J. Toxicol., 29, 244S–273S (2010).