The decrease in the thickness of the corneal layer facilitates the penetration of substances capable of inducing the release of cytokines, leukotrienes and prostaglandins.

Thus, adequate hydration of the skin improves the symptomatology of patients with sensitive skin.

Dermatitis that lead to the alteration of the epidermis barrier, such as atopic dermatitis, seborrheic dermatitis and rosacea, act as factors predisposing to sensitive skin.¹

The main location is the face, mainly the nasolabial fold. Factors that contribute to this are probably the greater use of cosmetics in this area, the presence of thinner skin barrier and the existence of a greater number of nerve endings on the face.⁽¹⁾

Other regions related to sensitive skin already described are: volar surface of forearms, hands, genital region and scalp.

The treatment of sensitive skin comprises several steps. In cases where there is a predisposing dermatitis to the symptomatology, the control of the disease contributes to the improvement of the condition.

Proper skin hydration helps to recover and maintain the skin protection barrier. Moisturisers with few components, without perfume and without substances that can irritate the skin, are indicated.

Photoprotectors should also be used in patients with sensitive skin, since, as already mentioned, ultraviolet radiation can trigger the symptomatology.⁽¹⁾

^{(1) Sensitive skin: review of an ascending concept* Ida Duarte, Jéssica Eleonora P. S. Silveira, Mariana de Figueiredo Silva Hafner, Raquel Toyota, and Debora Midori M. Pedroso}