The aging of the skin is produced, among others, by a series of external factors, basically solar radiation, which accelerates it by modifying it not only quantitatively but also qualitatively nulante. This aging has great social importance, hence the interest of cosmetics in this field, although when talking about aging it would be convenient to distinguish between intrinsic aging and photoaging1.
In intrinsic aging, a series of morphological changes, fine wrinkles, benign neoplasms, decrease in basal keratinocytes occur in the skin, which makes it harder to heal wounds, decreases the water content of the tissues with age, decreasing the state of hydration of the skin and therefore its barrier function. The control of the cutaneous aqueous content must be a primary objective in the prevention of skin aging2.
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