Allergic contact dermatitis or contact eczema:
In cosmetics the most often appearing, but also very common skin issue, is the late type allergic reaction. As the name shows, the skin gets in contact directly with the allergen and an itchy skin inflammation occurs. The reaction appears in every case when the skin in contact with the allergen. Things and materials causing allergic reactions tipically are certain plants, cosmetics, makeup, preservatives, metals (nickel, chromium), paints, colourants, scents, chemicals.