Each person has different skin types and in different seasons. So we have to pay attention to each link to achieve the purpose of cleaning the skin and protecting it. How to wash your face scientifically and skin care should start from the following: 1, the correct choice of water for washing your face The water quality of our life contains minerals mostly hard water, which is irritating to the skin, boiled softened water, which can reduce the irritation to the skin. The choice of water temperature should be based on the type of skin, dirt situation, for oily skin, dirt is heavy, the water temperature should be 40 ~ 45 degrees, easy to wash away grease and dirt. Dry skin should use soft water, the water temperature should not be too high, 38 ~ 40 degrees can be. 2, according to the different skin to choose skin cleanser There are many types of skin cleanser, there are soap, cleansing milk and other forms of agents, because of the different ingredients added inside, so that its role is different. It is important to choose according to the purpose of personal application. It cleanses the skin thoroughly to make it perfectly clean, and provides anti-wrinkle and moisturizing care. It gently exfoliates and cleanses pores, leaving the skin cleaner and more radiant. Improper use may cause skin diseases. Allergic dermatitis caused by skin cleansers is particularly common. For sensitive skin, use cleansers that contain little fragrance, low water temperature, little alkalinity, and a gentle method of washing. Do not rub your face hard when cleansing, you need to prevent damage to the skin barrier. 3, the correct way to wash the face General people wash 1 to 2 times a day. But for oily skin and work environment dusty, dusty weather, we must increase the number of times to wash the face, can be 3 ~ 4 times a day. And to use cleansing milk, the water temperature should be higher. For dry skin, wash 1~2 times on weekdays, cleansing can be used neutral soap, after washing can be used externally moisturizer. The number of times can be increased or decreased according to the sweating situation in summer. How to use skin cleanser: Take an appropriate amount of water to puff on your face to make it wet, take an appropriate amount of cleanser (usually 1 to 3 cm) in the palm of your hand, add water and knead until foamy, apply it to your face and massage for a minute, rinse off with water. Do not apply the face wash on the towel and then apply it to your face, as the towel is rough and easy to cause dermatitis. 4, for sensitive skin, wash your face with soft water, or cool boiling water, the water temperature should not be too high, for those who wash their faces red, it is appropriate to rinse again with cool water or use a wet cool towel for a few moments. Use less skin cleansers. You can use a mild non-irritating skin cleanser, do not use skin care products containing hormones. 5, pay attention to the key parts of the cleaning such as eye sockets, nose, nasolabial folds, auricles, behind the ears, mouth circumference, etc., easy to hide dirt and grime. Available hot water, cleansing milk to help remove dirt. 6, the application of skin care products Application of skin care products in different skin types, different seasons, the use of different skin care products. For example: for oily skin, the summer should be hydrated, sunscreen-based, available in winter moisturizing and nourishing skin cream. For dry skin, moisturizing skin care lotion is available in summer, while moisturizing skin care lotion, essence and nutritional honey are appropriate in winter. Skin care products can also cause allergic reactions, and those who are allergic to light should avoid using cosmetics containing fragrances. Allergy tests should be done before using new products. If you don’t know anything about skin care products, you can consult a dermatologist.