Protection Against Visible Light by Dihydroxyacetone in Erythropoietic Protoporphyria

Inclusion Criteria: * Diagnosed with erythropoietic protoporphyria * At least 18 years of age * Obtainment of written informed consent Exclusion Criteria: * Pregnant or breastfeeding * Use of dihydroxyacetone at the treatment or placebo fields within the last two week * Sun exposure of the treatment or placebo fields within the last two week * Use of suncreen or other local treatment on the treatment or placebo fields during the study period (two days) * Allergy to adhesive bandages, dihydroxyacetone or lotion