1, weakly acidic skin is the healthiest.
Weak acid skin is healthy and elastic.
Generally speaking, healthy and elastic skin is weakly acidic, with a pH of 5-6. Weakly acidic skin can reduce the damage of foreign bacteria and has normal metabolism. On the contrary, if the skin is alkaline (above PH7.5), it is easy to breed bacterial infection and inflammation.
So, how to judge the PH value of your skin? We can learn from three main situations that may occur in the skin:
Oil/no oil, water shortage/no water shortage. Whether there is any allergic phenomenon, whether the skin is red and swollen, and whether there are facial sores or acne. Observe the skin for uneven skin tone, looseness, fine lines and dark circles.
The following conditions are mostly alkaline skin.
(1) The skin is oily;
(2) often annoying facial sores and acne;
(3) thick cutin;
(4) Large pores;
(5) excessive sweating in the nose;
(6) The skin surface is easily contaminated with dirt.
The PH value of healthy oriental skin should be between 4.5 and 6.5, and the chemical reaction is weakly acidic. Sweat and oil secreted by sweat glands and sebum of the skin have PH values, and the more oily the skin, the lower the pH value. Therefore, the drier the skin, the higher the PH value and the stronger the alkalinity.
Should skin care products be acidic to compare skin care?
Since the skin should be acidic to be good, should it be acidic in the choice of skin care cosmetics? Dr. Mao Yueping from the Department of Dermatology, Zhongshan Second Hospital said that pH is an aspect that affects the skin and has little effect. Skin health is the comprehensive influence of many factors. Moreover, the skin itself has a certain range of acid-base mediation ability, and there is no need to deliberately manage the pH of the skin.
Although the skin has the ability of automatic mediation, if it is often exposed to strong alkaline substances, it will also weaken the self-repair ability of the skin. Therefore, when choosing skin care products, we should pay attention to whether the ingredients of the products are mild, moist and non-irritating.
Skin has a high neutralization ability to creams such as vanishing cream, but it is weak to soap and whitening powder products. Therefore, if you often use soap and alkaline cosmetics, your skin will be sensitive or get a rash. Rough skin and sweaty skin need to pay more attention to whether the ingredients of the product are mild. Therefore, generally speaking, products with strong acidity and strong buffering ability are most suitable for the skin.
2, acidic constitution skin care measures
Wake up every day: For people with acidic constitution, many skin problems come from poor circulation. Therefore, to improve skin problems, the most important thing is to change skin microcirculation and promote skin metabolism.
Nutritional massage: massage can strengthen blood circulation and promote skin metabolism, but massage in a state of lack of nutrition can easily lead to skin fatigue and dryness.
Hydrate first and then moisturize: people with acidic constitution have slow blood flow and insufficient skin moisture. If you encounter a dry environment such as an air-conditioned room again, your skin will be more prone to water shortage and even dry peeling. Simple moisturizing seems to have no effect on people with acidic constitution. When the skin is in a state of severe water shortage, it needs to be hydrated first and then moisturized.
3. Anti-alkali skin care measures
Keep the skin clean: people with strong alkaline constitution are prone to sweating. Excessive sweating will reduce the acidity of the skin and weaken the disease resistance, leading to various skin surface infections. Therefore, for strong alkali skin, the most important thing to protect the skin is to keep the skin clean and take a bath regularly to avoid excessive sweat and secretions irritating the skin.
Daily refreshing: People with strong alkaline constitution have fast metabolism, and their skin is not only greasy, but also rougher than those with acidic constitution. After cleaning, it is necessary to replenish cosmetics with good hygroscopicity in time, so that the stratum corneum can maintain sufficient moisture, increase the softness of the skin, and make the skin more moist.
4, the method of hydrating and moisturizing
1, pay attention to hydrating when washing your face.
Many mm with oily skin will wash their faces several times a day. You can easily replenish water when you wash your face. After washing your face with clean water, you don't have to hurry to dry the water drops on your face with a towel, let it dry naturally or pat your face gently with the palms of your hands, so that your skin can fully absorb moisture!
Step 2 Wash your face with warm water
Washing your face with cold water for oily skin will cause the pores of facial skin to shrink, so that the oil stains and sweat in the pores can't be washed out in time. The consequence of this is to make the skin pores bigger. The correct way is to use warm water. Not only can the pores be fully opened, but also the natural moisturizing oil of the skin will not be excessively lost. Choose warm water when cleansing, and don't use a towel when cleansing. Choose soft facial tissues or beauty towels.
Step 3 use mild facial cleanser
Many MM with oily skin like to use alkaline facial cleanser with very strong cleaning ability in order to control oil. As we all know, this facial cleanser is very harmful to the skin, and it is best to choose a mild and weak acidic facial cleanser for oily skin.
4. After the moisturizing milk stays on the face for a few minutes, you can gently press the face with a facial tissue to absorb excess lotion and improve the glossy phenomenon.
5. Deep cleansing mask and moisturizing mask are used alternately. Deep cleaning mask often has the function of decontamination and oil control. It is best to apply pure water mask to replenish water every other day.
6. Wet your face with warm water, choose soft soapy water cleanser, gently massage with your fingertips, and then wash with warm water.
7. Use firming lotion to shrink pores.