1. What is the pH of the skin?
pH is a scale to determine the acidity or alkalinity of any solution or medium with a scale running from 0 to 14. The lower the pH (below 7) – indicates high acidity and anything Anything with a pH greater than 7 is considered alkaline. If the pH = 7, is considered neutral.
Our skin is protected by a thin acid mantle consisting of amino acids and lactic acid. This acid film has the effect of keeping the necessary fats and moisture in the skin. According to many studies, the ideal pH for skin falls within the threshold of 5.5 degrees – a mildly acidic environment.
2. What effect does skin pH have on the skin?
If the pH is maintained properly, the membrane around the skin will maintain a good protective barrier, along with the skin’s natural oils to create a shield called the acid mantle – the acid mantle. This membrane is responsible for preventing harmful agents to the skin from the outside and killing bacteria.
Besides, the pH of the skin at an appropriate level also creates a good environment for beneficial microorganisms to grow, helping to balance the microflora. In the process of “dwelling” on the skin, microorganisms contribute to maintaining the acidity of the skin barrier, making the pathogens on the skin eliminated.
If the pH of the skin is not maintained stably, you will be prone to skin disorders and a feeling of dryness. If long-term, the skin resistance will weaken, the skin becomes sensitive, prone to acne or skin diseases such as eczema, redness, …
3. What causes the skin to lose its pH balance?
The pH of the skin greatly affects the things we come into contact with from the inside and the outside. Issues that affect skin pH can include skin care products, weather, water, or oral medications, etc. Here is a summary of the main causes of skin pH changes:
– Wash your face too many times
– Using inappropriate skin care products
– Change in weather, temperature, humidity
– Air pollution, dust
– Exposure to harmful chemicals
– Medicines and antibiotics
4. How to effectively balance the pH of the skin
If unfortunately your skin is disturbed, pH imbalanced, you should immediately apply the following methods:
4.1 Notes when choosing facial cleanser
Daily skin care with the right products is important to maintain the pH balance of the skin. Experts also revealed that in the skin care cycle, the facial cleansing step easily causes the skin to lose its inherent pH because cleaning products often have a pH greater than 5.5 to remove oil and dirt. So, before buying skin cleansing products, you should check the pH and skin type to know how to use it correctly.
4.2 Do not use too hot water to wash your face
Many people have the habit of using hot water to wash their face with the thought that it will expand pores, so that the skin is clean and better nourished, but according to experts, this is a misconception. Using too hot water to wash your face, as well as using a hot steam bath on your face for too long will destroy the acid film on the skin, causing an imbalance in the pH of the skin.
4.3 Choose skin care products with the right pH
This is one of the most effective methods of maintaining the pH balance of the skin. When using skin care products with a pH ranging from 4-6, it will help nourish the acid film on the skin better. Products with a pH higher than 7 are often alkaline, making it easy for the skin to lose its natural moisture, become tight and dry, especially in the cold season.