JOURNAL OF COSMETIC SCIENCE 214 (41) M. Carducci, P. Pavone, G. De Marco , S. Lovati, V. Altabas, K. Altabas, and E. Emanuele, Comparative effects of sunscreens alone vs sunscreens plus DNA repair enzymes in patients with actinic kerato s is: clinical and molecular fi ndings from a 6-moth, randomized, clinical study, J. Drugs Dermatol., 14(9), 986–990 (2015). (42) V. Snaidr, D. Damian, and G. Halliday, Nicotinamide for photoprotection and skin cancer chemopre- vention: a review of effi cacy and safety, Exp. Dermatol., 28(Suppl 1), 15–22 (2019). (43) L. Guan, A. Suggs, E. Galan, M. Lam, and E. Baron, Topical application of ST266 reduces UV-induced skin damage, Clin. Cosmet. Invest. Dermatol., 10, 459–471 (2017). (44) J. Choi, W. Cho, Y. Choi, J . Kim, H.-A. Park, S. Kim, J. Park, D.-G. Jo, and Y. Cho, Functional recov- ery in photo-damaged human dermal fi broblasts by human adipose-derived stem cell extracellular ve s- icles, J. Extracell. Vesicles, 8, 1565885 (2019)