Why is facial skin more sensitive in cold and dry winter when skin is more prone to redness, swelling, dryness, and peeling? What should be noted in skincare? Why is the skin on the face naturally insufficient? How to determine one's skin type? The skin on the face is one of the thinnest and tender parts of the human skin, which is more susceptible to stimulation than most of the body's skin. Our skin has a gland called the sebaceous gland, which secretes oil to maintain the skin's barrier function. The sebaceous glands are mainly concentrated in the head, face, chest, and shoulder blades. The sebaceous glands on the face are particularly vigorous, and their secretion is influenced by many factors, such as temperature, hormones, and so on Diet and other factors can lead to functional disorders. Therefore, the more sebaceous glands there are, the more likely it is to cause related skin problems. Dry skin and oily skin are also closely related to sebaceous glands. After washing the face with warm water in the morning, let it sit for about 1 hour. By observing the overall oil production of the face, one can easily determine the skin type. If there is no oil on the face and there is a tightness sensation throughout the face, it is likely to be dry skin; If oil appears on both cheeks, forehead, and nose, it is likely to be oily skin; If both cheeks are dry and there is oil on the forehead and nose, it is likely to be mixed skin; If the skin is neither tight nor oily, it is considered neutral skin. Did you do the right thing about washing your face? Come and get your "best temperature". In winter, it is recommended to clean your skin twice a day and wash your face with cleansing products at night. For neutral and dry skin types, wash your face with water in the morning. For oily skin, you can use oil control and moisturizing cleansing products. In addition, be careful not to use scrub frequently. Different skin types also have different requirements for washing water temperature. What is your "best temperature"? ● Dry and sensitive skin: For dry or sensitive skin, it is recommended to clean with a water temperature lower than the skin's temperature, which means it should be below 35 ℃ and feel warm and cool to the touch. Oil skin: For oily skin, it is recommended to choose slightly warmer water when washing the face, which is slightly warmer than the skin temperature, around 37 ℃, and should not be hot to the hands. Oil acne prone skin: Cold water has the least damage to the skin's barrier function, but for some particularly oily skin or skin prone to acne, it is better to choose slightly hot water (slightly higher than the skin temperature) to wash the face. ● Elderly population: As age increases, some moisturizing ingredients in the skin will gradually decrease, so skincare should be more gentle. It is recommended to use warm and cool water when washing your face. If the water temperature is higher than the skin temperature, it may take away more oil components from the skin surface, making the skin drier. What should be noted when using skincare products in winter? Can regular application of facial mask moisturize? In cold and dry winter, many people think that when using skin care products, facial tingling indicates a lack of water, so they can use more skin care products to "replenish water". In fact, the real effective moisturizing ingredients in skin care products are some moisturizing agents or sealants in milk, cream and cream. If the skin is dry, it is recommended to use milk Cream or cream moisturizing Simply apply spray skin care products to the face, the liquid will soon evaporate and can not play a very good moisturizing role. In addition