The performance of damaged skin stratum corneum includes red blood on the face, more sensitive skin on the face, and dry skin with fine lines. 1. Red blood on the face: the normal stratum corneum has many layers, but the damaged stratum corneum has only one layer, and the thickness is very thin. Because all parts of the body are rich in blood vessels, damaged stratum corneum, blood vessels are exposed, making redness obvious. 2. Sensitive skin on the face: If the stratum corneum is damaged, it will aggravate the sensitivity of the skin. If you have an improper diet or apply unsuitable cosmetics, your face will be easily allergic. 3. Dry skin with fine lines: The water locking function of damaged stratum corneum is weakened, making the skin dry. And due to the reduced tolerance of the skin, it is easy to have skin pain and itching. The influence of the external environment and temperature changes on the skin increases, and a lot of fine lines appear on the skin. With the manifestation of damaged skin stratum corneum, you should go to the hospital in time for examination and treatment under the guidance of the doctor.