If this is true, many freckle removal products have been used, but they cannot be improved. So what are freckles? How should it be treated? What are freckles? Freckles are a kind of pigmentation disorder related to heredity, which is commonly found on the face. Most of them are seen in children around 5 years old, mostly in females. Its number gradually increases with age. It often worsens in spring and summer and decreases in autumn and winter. The clinical phenomenon of familial aggregation can sometimes be seen, which is also known as family inheritance. The wavelength of UV radiation that aggravates freckles is in the 300nm-400nm range, which is usually difficult to be filtered by ordinary glass or shading agents, and even fluorescent lights used for indoor lighting can stimulate freckles. What do freckles look like? Usually the size is similar to a needle point or a grain of rice, and the diameter is about 1-2mm. The color is brown but the shade varies, that is to say, the degree varies from light brown to brownish. What are the common treatment methods for freckles? 1.General treatment: Avoid sunlight. 2. Local treatment: 1) Depigmentation preparation: hydroquinone cream, salicylic acid ointment, retinoic acid cream 2) Surgical treatment: skin grinding is available for serious cases. 3) Chemical peeling therapy: trichloroacetic acid solution or phenol dabbing or liquid nitrogen freezing, etc. 4) Laser treatment: the main method of treating freckles at present, Q-switched laser or picosecond or super picosecond laser, laser treatment for freckles is safe and effective. Systemic treatment: mainly oral vitamin C and vitamin E.