Skin acts as a natural barrier between internal and external environments thus plays an important role in vital biological
functions such as protection against mechanical/chemical damages, micro-organisms, ultraviolet damage. Nutrition has a
critical impact on strengthening skin’s capabilities to fight against these multiple aggressions.
Nutritional deficiencies are often associated with skin health disorders, while diets can either positively or negatively
influence skin condition. More recently, the concept of nutritional supplementation has emerged as a new strategy in the
daily practice of dermatology as well as a complementary approach to topical cosmetics in the field of beauty. Focusing
on human clinical data, this paper proposes to illustrate the link between skin health and nutrition and to exemplify the
beneficial actions of nutritional supplementation in skin health and beauty