Exposure to the sun, if balanced and far from the central hours of the day, has a beneficial effect on the body: it helps our body produce vitamin D, the anti-cancer protein P53 and serotonin. It is necessary to remember however that the skin has a lipidic component (linoleic and linolenic acid) susceptible to peroxidation during sun exposure which, if not compensated, causes the development of free radicals and the consequent aging of the tissues. More precisely, photoaging would compromise the vitality and functional capacity of the cells of the basal layer of the skin, with direct consequences on the quality of the stratum corneum (gloss and homogeneity), on skin coloration and on the regenerative capacity of healthy tissue. Damage to the dermis, determined mostly by the degradation of collagen, by lesions on fibroblasts and therefore by the reduced ability to model new, integrated and organized extracellular matrix, would result in the appearance of deep furrows, wrinkles, dehydration and structural alterations in the skin. . It is therefore essential to reintegrate the cutaneous lipidic component as well as with the alimentation, even topically, during the hours of light or during sun exposure.