Glycolic acid, an ingredient that should not be mixed with glycolic acid, is widely used in the field of skin care and has excellent skin rejuvenation effect. However, not all ingredients can be mixed with it, otherwise it may cause adverse consequences such as skin damage.

Alkali substances must not be mixed with glycolic acid. When alkali meets glycolic acid, a neutralization reaction will occur, which will greatly change the pH value of the product. This will not only weaken the original skin care effect of glycolic acid, for example, its effect of promoting keratin renewal and brightening skin tone is greatly reduced, but also the reaction process may generate heat, which will cause irritation to the skin, resulting in redness, swelling, tingling and other uncomfortable symptoms. Common alkalis such as sodium hydroxide, if improperly mixed with glycolic acid in skin care products, can be

Strongly oxidizing ingredients should also not be used with glycolic acid. Strong oxidants have the ability to capture electrons, and glycolic acid may become its target and undergo oxidation reactions. This will change the chemical structure of glycolic acid and lose its original skin care activity. For example, hydrogen peroxide, if mixed with glycolic acid, may damage the molecular structure of glycolic acid, and may also generate some by-products that are harmful to the skin, increasing the risk of skin allergies and inflammation.

Some metal ions should also be avoided from mixing with glycolic acid. Some metal ions can react with certain groups in glycolic acid, forming substances that are difficult to be absorbed by the skin, reducing the efficacy of the product. Moreover, this reaction may cause changes in the texture and stability of the product, such as precipitation, delamination, etc., which affect the normal use of the product. Like iron ions, copper ions, etc., if it comes into contact with glycolic acid in the formula of skin care products, it may cause such problems.

In order to ensure the safety and effect of skin care, when using skin care products, be sure to read the ingredient list carefully to avoid mixing glycolic acid with the above ingredients. In this way, glycolic acid can better exert its skin care advantages and take care of skin health.