Sesderma Sensyses Atopic Cleanser - cleansing water atopic skins. Atopy, a chronic disease characterized by extremely dry skin associated with a tendency to have allergies, can be very harsh, especially on the face. This gentle formula was designed to gently nourish the skin while at the same time enveloping it in a protective layer of soothing ingredients to reduce discomfort. The skin becomes comfortable and nourished, ready to receive your favorite hydrating skincare products.