Does the stratum corneum thicken on its own?

The stratum corneum has a certain degree of self-repair and thickening capacity, but this ability is limited. Under normal conditions, the stratum corneum continuously renews and repairs itself through natural metabolic processes, maintaining a certain thickness and healthy state. When the stratum corneum suffers severe damage or is exposed to persistently adverse external conditions, its self-repair capability may be impaired, leading to thinning or damage. To promote the self-repair and thickening of the stratum corneum, we can take several measures, such as keeping the skin clean, avoiding excessive cleansing and exfoliation, emphasizing moisturization, and refraining from using irritating skincare products. In addition, maintaining good lifestyle and dietary habits and consuming sufficient nutrients also contribute to the health of the stratum corneum.