Isdin fotoultra 100 solar allegy fusion fluid… Isdin fotoultra 100 solar allegy fusion fluid prevents and relieves symptoms associated with solar allergy and other types of photodermatoses. Especially suitable for sun-reactive skins. Medical device with UVA 40 and SPF 107. Relieves symptoms associated with solar allergy such as itching and inflammation and protects from visible light. Provides 2 times the minimum protection required on an SPF 100+ sunscreen against UVA rays. With 1% ectin, which provides a hardening effect of the skin, making it more resistant to the aggressions of UV radiation. Its Fusion Fluid texture fuses with your skin. Unique thixotropic formula that, through heat and friction in application, becomes more fluid and merges with your skin. You will notice its rapid absorption and an incredible feeling of lightness. For all skin types. What is solar allergy? Solar allergy (or polymorphic luminaire eruption) is a condition that manifests itself through inflammation of the skin, itching and redness in response to exposure to UV rays. It appears in people who have extreme sensitivity to solar radiation and can manifest immediately after a few minutes of sun exposure, a few hours or several days. Its duration in time also varies. Solar allergy is a non-hereditary disease and is not related to any other type of allergy. When it does appear, however, it is considered a chronic condition, as it usually presents itself characteristic each spring (with the first exposure) and fades over the summer.