709 UV OXIDATION (8) J. M. Marsh, R. Iveson, M. J. Flagler, M. G. Davis, A. B. Newland, K. D. Greis, Y. Sun, T. Chaudhary, and E. R. Aistrup, Role of copper in photochemical damage to hair, Int. J. Cosmet. Sci., 36(1), 32–38 (2014). (9) C. Cabrera, R. Giménez, and M. C. López, Determination of tea components with antioxidant activity, J. Agric. Food Chem., 51(15), 4427–4435 (2003). (10) W. Koch, J. Zagórska, Z. Marzec, and W. Kukula-Koch, Applications of tea (Camellia sinensis) and its active constituents in cosmetics, Molecules, 24(23), 4277 (2019). (11) A. Kaur, P. Thatai, S. Sharma, and B. Sapra, Green tea extract in microemulsion: Stability, dermal sensitization and efficacy against UV induced damages, Int. J. Pharm. Pharm. Sci., 8(Suppl 1), 1–8 (2016). (12) M. A. Alboreadi, M. M. Al-Najdawi, Q. B. Jarrar, and S. Moshawih, Evaluation of hair growth properties of topical kombucha tea extracts, Adv. Tradit. Med. 22, 151–161 (2022). (13) C. Nualsri, N. Lourith, and M. Kanlayavattanakul, Development and clinical evaluation of green tea hair tonic for greasy scalp treatment, J. Cosmet. Sci., 67(3), 161–166 (2016). (14) J. Huang, C. L. Hastings, G. P. Duffy, H. M. Kelly, J. Raeburn, D. J. Adams, and A. Heise, Supramolecular hydrogels with reverse thermal gelation properties from (oligo)tyrosine containing block copolymers, Biomacromolecules, 14, 200–206 (2013). (15) F. W. Ward, The absorption spectra of some amino acids, Biochem. J., 17, 898–902 (1923). (16) M. A. Rogers, L. Langbein, S. Praetzel-Wunder, H. Winter, and J. Schweizer, Human hair keratin- associated proteins (KAPs), Int. Rev. Cytol., 251, 209–263 (2006). (17) C. R. Robbins and C. H. Kelly, Amino acid composition of human hair, Text. Res. J., 40, 891–896 (1970). (18) D. Creed, The photophysics and photochemistry of the near-UV absorbing amino acids–1. Tryptophan and its simple derivatives, Photochem. Photobiol., 39(4), 537–562 (1984). (19) B. Kierdaszuk, I. Gryczynski, A. Modrak-Wojcik, A. Bzowska, D. Shugar, and J. R. Lakowicz, Fluorescence of tyrosine and tryptophan in proteins using one- and two-photon excitation, Photochem. Photobiol., 61(4), 319–324 (1995). (20) R. V. Benasson, E. J. Land, and T. G. Truscott, Excited States and Free Radicals in Biology and Medicine (Oxford University Press, Oxford, United Kingdom, 1993). (21) J. W. Longworth, “Luminescence of Polypeptides and Proteins,” in Excited States of Proteins and Nucleic Acids, R. F. Steiner and I. Weinryb, Eds. (Plenum Press, New York, 1971), pp. 319–484. (22) C. Giulivi, N. J. Traaseth, and K. J. A. Davies, Tyrosine oxidation products: analysis and biological relevance, Amino Acids, 25(3–4), 227–232 (2003). (23) P. Groves, J. M. Marsh, Y. Sun, T. Chaudhary, and V. Chechik, Effect of humidity on photoinduced radicals in human hair, Free Radicals Med. Biol., 121, 20–25 (2018). (24) P. Groves, J. Huang, A. Heise, J. Marsh, and V. Chechik, Molecular environment and reactivity in gels and colloidal solutions under identical condition, Phys. Chem. Chem. Phys., 22(21), 12267–12272 (2020). (25) D. I. Pattison, A. S. Rahmanto, and M. J. Davies, Photo-oxidation of proteins, Photochem. Photobiol. Sci., 11(1), 38–53 (2012). (26) W. A. Yehye, N. A. Rahman, A. Ariffin, S. B. A. Hamid, A. A. Alhadi, F. A. Kadir, and M. Yaeghoobi, Understanding the chemistry behind the antioxidant activities of butylated hydroxytoluene (BHT): a review, Eur. J. Med. Chem., 101, 295–312 (2015). (27) J. M. Marsh, M. G. Davis, M. J. Flagler, Y. Sun, T. Chaudhary, M. Mamak, D. W. McComb, R. E. A. Williams, K. D. Greis, L. Rubio, and L. Coderch, Advanced hair damage model from ultra-violet radiation in the presence of copper. Int. J. Cosmet. Sci., 37(5), 532–541 (2015). (28) K. R. Millington, Photoyellowing of wool. Part 2: Photoyellowing mechanisms and methods of prevention, Color. Technol.,122(6), 301–316 (2006). (29) E. Fernández, B. Martínez-Teipel, R. Armengol, C. Barba, and L. Coderch, Efficacy of antioxidants in human hair, J. Photochem. Photobiol. B, 117, 146–156 (2012).

710 JOURNAL OF COSMETIC SCIENCE (30) I. Sopyan, R. D. Permata, D. Gozali, and I. S. K. Syah, Formulation of lotion from black tea extract (Camellia sinensis Linnaeus) as sunscreen, Int. J. Appl. Pharm., 11(1), 205–209 (2019). (31) S. L. Davis, J. M. Marsh, C. P. Kelly, L. Li, C. S. Tansky, R. Fang, and M. S. J. Simmonds, Protection of hair from damage induced by ultraviolet irradiation using tea (Camellia sinensis) extracts [published online ahead of print 20 Aug 2021], J. Cosmet. Dermatol., doi: 10.1111/jocd.14387. (32) K. Kizawa, H. Troxler, P. Kleinert, T. Inoue, M. Toyoda, M. Morohashi, C. W. Heizmann, Characterization of the cysteine-rich calcium-binding S100A3 protein from human hair cuticles, Biochem. Biophys. Res. Commun.,299(5), 857–862 (2002).