How does the stratum corneum thicken?

The main methods for thickening the stratum corneum include the following: 1. Daily Skincare: Choose gentle facial cleansers and skincare products, and avoid excessive exfoliation. Maintain skin hydration by using moisturizing products, and ensure a balanced diet rich in vitamins and antioxidants. 2. Medication: Under medical supervision, topical calcineurin inhibitors such as pimecrolimus cream or tacrolimus ointment may be used. Short-term application of mild corticosteroids, such as dexamethasone or hydrocortisone, can also help promote recovery of the stratum corneum. 3. Professional Treatments: For example, photorejuvenation therapy uses specific broad-spectrum light to penetrate deep into the skin, stimulating collagen regeneration and effectively thickening the stratum corneum. However, multiple sessions are typically required to achieve optimal results. These methods should be performed under the guidance of a qualified healthcare professional to ensure safety and effectiveness.