There are many ways to thicken the stratum corneum of the face, such as reducing external stimuli in daily life, paying attention to sun protection, and controlling the temperature of the water used to wash the face. You can also visit a hospital and under the guidance of a professional doctor, undergo laser-based and chemical skin resurfacing treatments. According to their own situation, choose the right program, there are mainly the following ways to achieve the purpose of thickening the stratum corneum of the face: 1, daily protection: 1, reduce external stimulation: stratum corneum thinning, in most cases due to external stimulation, such as daily over-cleaning, etc., can be reduced by reducing the use of cleansing products to promote the natural thickening of the stratum corneum. In addition, the use of exfoliating products should be reduced to avoid keratin damage, thinning of the stratum corneum, erythema and facial skin sensitivity problems; 2, pay attention to sun protection: UV radiation can lead to damage to the stratum corneum, redness, heat and erythema, pigmentation and other symptoms. So you need to pay attention to sun protection, including wearing a hat, umbrella, sunscreen, etc. when you go out; 3, control the wash water temperature: wash your face, the water temperature is controlled at 37-39 ℃, to avoid the water temperature is too high caused by the exfoliation of the stratum corneum. After washing, you can also wipe your face with a cold towel to promote the growth of the stratum corneum. Second, clinical treatment: 1, laser-type treatment: it is recommended that patients go to the hospital, under the guidance of professional doctors, laser-type treatment methods. To achieve the purpose of repairing the epidermis, promoting skin metabolism and accelerating the new growth of the stratum corneum; 2. Chemical resurfacing treatment: for example, supramolecular salicylic acid, which can stimulate the epidermal stratum corneum and thus thicken the skin barrier. Patients need to be treated under the guidance of a professional doctor, otherwise the effect may not be achieved or even counterproductive.