Bleaching or skin whitening is a treatment or practice to lighten the skin colour to look brighter with radiance. Bleaching treatment involves whitening substances, mixtures and physical treatments, which reduce the content of the melanin in the skin, which is responsible for the pigmentation. While some bleaching agents are good many others give side effects like nutrient loss in the skin, or in some cases even lead to cancer. Bleaching is to be done under the advice of an experienced cosmetologist only. Skin lightening treatments or bleaching involves reducing or blocking the melanin production and are aimed in reducing the productivity of melanin. This ensures the skin remains lighter after the treatment for a long time. Many Bleaching treatments use a combination of gel and lotions that inhibits melanin along with a sunscreen. Cosmetologists also refer the patients to have vitamin c rich diets. The ascorbic acid present is considered an effective anti-oxidant for the skin and helps in lightening the skin. Nowadays, cosmetologists use laser therapies for the lightening the skin, but this treatment last for a very short period. Full body bleaching requires much care and attention, for which liquid nitrogen is used in which the existing cells are damaged in order to regenerate new cells. The melanin comes to the surface and gets peeled off. Though there are many ways available for bleaching treatment, it is best to analyze and take a cosmetologist's opinion before proceeding to avoid harmful side effects.