Immaculate and glowing skin is everyone’s wish. People use many types of beauty products to make their face beautiful and skin shiny. But many times even after all the efforts, the blackness of our forehead is not cleared. There can be many reasons behind the darkening of the skin on the forehead. Darkening of the forehead is often caused by nutritional deficiencies, hormonal changes, exposure to sunlight or excessive production of melanin in the skin.