Dr Grandel Elements of Nature Derma Pur 50mlThe light moisturizer with biotin and zinc has a refining, regulating, balancing and refreshing effect. DR. GRANDEL Derma Pur has also a positive effect on the regeneration of irritated skin areas. Redness and blemishes are soothed away and the annoying shiny look of combination and oily skins is reduced, producing a much calmer, finer and more even complexion.