The stratum corneum is the normal physiologic structure of the epidermis, and no treatment exists to thicken the stratum corneum. However, chemical skin resurfacing, photorejuvenation, and attention to daily life can be used to promote the metabolism of the skin to maintain the skin’s healthy protective barrier state. 1. Chemical skin resurfacing: You can use fruit acid, salicylic acid and other acid brushing to thicken the facial stratum corneum, and use complex acid to stimulate the stratum corneum to stimulate the thickening of the subcutaneous epidermis and collagen stratum corneum, and you can also apply salicylic acid cream to repair and promote the metabolism of the stratum corneum. 2. Photorejuvenation: Photon internal is mainly through the principle of intense pulsed light, selective action on the target tissue, by the photothermal effect of laser peeling off the epidermal pigmentation; can also stimulate subcutaneous collagen regeneration, to improve the skin’s surrounding environment, generally recommended to carry out 1 time in January. 3. Daily life: reduce external stimulation, wash your face with warm water, use facial cleanser with less irritation, pay attention to sun protection and avoid ultraviolet radiation; in addition, pay attention to adjusting dietary structure, balanced nutrition and avoiding stimulating food. The first two need to be carried out under the guidance of a specialist to avoid irreversible damage to the skin.