The importance of pH value of facial cleanser

Face wash is an essential product in daily skin care. But do you know how important the pH level of the cleanser you use is for your skin? This article will explore the importance of facial cleanser pH and how to choose the right facial cleanser to maintain healthy skin.

What is pH?

First, let’s understand what pH is. pH is a measure of acidity or alkalinity that ranges from 0 to 14. Within this range, 7 is considered neutral. Values less than 7 indicate acidity, while values greater than 7 indicate alkalinity. Skin’s natural pH is usually between 4.5 and 6.2, which is slightly acidic.

The skin’s natural pH

The skin’s natural pH is essential for maintaining its health and function. This slightly acidic pH has several key roles:

Protective barrier: The acidic pH of the skin helps maintain the integrity of the stratum corneum (epidermis). This layer acts as the skin’s natural barrier, preventing bacteria, dirt and harmful substances from penetrating the inside of the skin.

Oil and water balance: The right pH helps maintain the oil and water balance of the skin. This means that the skin is neither too oily nor too dry.

Fight infection: An acidic pH reduces the growth of germs, thereby reducing the risk of infection.

The pH of the cleanser

The pH level of the cleanser is crucial to maintaining the skin’s natural pH balance. However, many traditional soaps and cleansers are alkaline, and they may disrupt the skin’s natural pH. When the pH of the skin is broken, a number of problems can occur, including:

Dry and tight skin

Skin allergy and sensitivity

Acne and inflammation

Skin discomfort

Therefore, it is very important to choose a cleanser whose pH is close to or slightly below the natural pH of the skin.

How to choose the right facial cleanser

Check the ingredient list: When buying a cleanser, carefully check the product’s ingredient list. Search for information about pH to make sure it is within the skin’s natural pH range.

Natural and mild ingredients: Choose cleansers that contain natural and mild ingredients, such as amino acid cleansers. These ingredients are more likely to match the pH of the skin.

Soap-free formulas: Soap-free cleansers are usually milder because they do not contain alkaline ingredients.

Special attention to sensitive skin: If your skin is sensitive, pay more attention to the pH of the cleanser to avoid irritation and allergy.

pH testing: Sometimes products will clearly indicate their pH value on the label. You can choose these products to ensure that your skin is well taken care of.


Maintaining the skin’s natural pH balance is an important step in maintaining healthy skin. Choosing the right facial cleanser, where the pH is appropriate for your skin type, can help reduce the risk of skin problems such as dryness, sensitivity, and inflammation. Therefore, when buying a cleanser, carefully research the ingredients and pH of the product to ensure that your skin is receiving the best care possible.

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