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1. The characteristics of sensitive muscles
Sensitive skin is more sensitive, the sebum film is thin, the skin's own protection ability is weak, and it is prone to redness, swelling, pricking, itching, pain, peeling, and dehydration. Very sensitive to external stimuli. When exposed to external stimuli, local redness, redness, swelling, lumps and irritation will appear.

2. Maintenance focus
Friends with sensitive skin should take care of their skin. When washing your face, the water should not be too hot or cold. Use a mild facial cleanser to wash your face. In the morning, you can choose sunscreen to avoid sun damage to the skin; in the evening, you can use a nutritive lotion to increase the skin's moisture.

In terms of diet, eat less foods that are prone to allergies, and appropriately increase the intake of carotene, vitamin C, and vitamin E, which can help protect the skin's barrier function. The specific recommendations are as follows:
1. Food diversification (more than 15 kinds a day) to ensure a comprehensive intake of nutrients

2. Light diet, eat slowly; food should be easy to digest, avoid spicy and irritating food

3. Coarse grains are rich in B vitamins and have a regulating effect on the secretion of skin oil, preferably accounting for more than 1/3 of the staple food

4. Adequate protein intake is the key nutrient for our skin to synthesize collagen, which helps the skin to maintain moisture and elasticity. 1 palm-sized amount of fish/shrimp/meat per day; 1 egg per day; beans 3 times a week; milk 300ml a day

5. Daily intake of a catty of vegetables and half a catty of fruits, of which dark fruits and vegetables should account for more than half; the carotene and VC contained in it are essential for maintaining the integrity of the skin (barrier function)

6. Avoid a light diet. The vitamin E rich in vegetable oils and nuts can help the skin lock in moisture and reduce the damage of ultraviolet rays to the skin. Vegetable oil 15g-25g per day, 1 sachet (10g) of nuts per day

7. Moisturizing and hydrating, intake more than 1800ml of water every day to promote skin metabolism

8. Eat less foods that are prone to allergies such as shrimp/crab/seafood

3. Skin care products selection
An adaptability test should be carried out first, and it can be used if there is no response. Remember to use inferior cosmetics or use multiple cosmetics at the same time, and be careful not to change cosmetics frequently. Do not use skin care products that contain too much fragrance or too much acid and alkali. Products containing ethanol and decisive ingredients are very irritating to the skin. Avoid using them. Instead, choose cosmetics that are suitable for sensitive skin.

4. Nutritional supplement recommendations
Vitamin E
Vitamin E has a strong antioxidant effect, can protect cells and tissues from oxidative damage, blocking the formation of melanin helps to improve the state of the skin, and help you break the skin ''wrinkle'' language. Vitamin E should be extracted from natural food seeds, which has higher biological activity and bioavailability than synthetic vitamin E.