Hyperkeratosis refers to an abnormal thickening of the stratum corneum, a pathological change in which the epithelial cells on the surface of the skin or mucous membranes are hyperkeratotic and the stratum corneum is inflamed and thickened. Common anti-keratinization methods are: 1, in the diet more food rich in vitamin A, E, such as carrots, green vegetables, fresh fruit, etc.. 2, in the dry climate in winter, the skin loses more water, easily aggravate the keratinization. Therefore, in winter bathing should not be too diligent, and should not use too much alkaline bath products. 3.Sunscreen and oral vitamin C can also slow down the keratinization in summer. 4, try to wear cotton clothes. 5, choose anti-keratinization effect of the exact, safe skin care products such as aloe vera extract.