Sun exposure provokes damages in the cell DNA. These damages cumulate as time goes by: this is called the actinic damage. The exposed to the sun body areas (face, ears, d?collet?, scalp, back of the hands) are vulnerable to these lesions. If they are not treated rapidly, they can provoke a cutaneous cancer without melanoma.Isdin Eryfotona AK Fluid SPF100+ 50ml has been specially created to prevent and improve the treatment of actinic cutaneous lesions.This fluid lets on the skin a protective film with Repairsomes DNA and one factor of sun protection UVB 109, UVA 39, that reduces the apparition of new lesions.A regular use enhances the natural mechanism of DNA repairing.This fluid is particularly recommended if you:- have treated an actinic keratosis or a cutaneous non melanoma cancer and want to avoid any recurrence.- have or had actinic cutaneous lesions, with itching or formation of skin flakes.- have family history of non melanoma cutaneous cancer.