Dr. Ruud Valks, MD, Ph.D is a Dutch dermatologist with more than 12 years of international experience, who worked at the University Hospitals of Amsterdam and Madrid. He is member of the American Academy of Dermatology and has many publications in top international scientific dermatologic journals and held many conferences at international Congresses. He deals with the entire dermatology, which comprises all diseases of the skin, hairs and nails. Dermatologic Surgery (Surgery of Skin cancer with cosmetic repair and Cosmetic surgery (removal of growths and discolorations). Skin cancer prevention with dermatoscopy (which is a microscopic tool that is placed on the skin and gives a more precise diagnosis). Cosmetics (Acne and treatments of pigment spots).