Bleaching, or whitening, is a cosmetic process used to lighten the color of skin, hair, or teeth. It often involves the application of chemical agents that reduce melanin, the pigment responsible for color. Common products include creams, gels, and dental whitening strips, which can be used at home or in professional settings. While many people seek bleaching for aesthetic reasons, it is important to be aware of potential side effects. Some bleaching agents can cause skin irritation, sensitivity, or allergic reactions. Consulting a dermatologist or dental professional is recommended before starting any bleaching treatment to ensure safety and effectiveness.