Bleaching is a treatment used to lighten the skin. Skin lightening products other than bleach includes, fading creams, skin brighteners and whiteners. Bleach works by reducing the natural pigment in the skin called melanin. This pigment is responsible for creating dark hues on our skin. People also use this skin lightening treatment to cure discoloration, acne scars, age spots and freckles related to hormonal changes. This technique is also used to lighten skin which is naturally dark. Bleach can also be risky, so it should be used with caution and under the guidance of a skin specialist. Skin colour is usually determined due to the amount of melanin present in the skin cells. People with dark skin have more melanin content than people with light skin. The amount of melanin in the skin is usually dependant on the genetic makeup. Exposure to some chemicals, skin damage, hormone and sunlight exposure can also affect the melanin content in your skin.