On the common sense of burning sensation caused by glycolic acid
Fuglycolic acid is quite useful in the field of skin care. However, it is often suspected that when it is used, it will cause burning sensation. Is this reasonable?

Glycolic acid, which belongs to fruit acid and the like, has the ability to rejuvenate the skin, can exfoliate the stratum, promote the metabolism of the skin, and make the skin radiant and smooth. However, its liveliness, the skin may react with it.

If the skin is initially treated with glycolic acid, because it has not been stimulated, the epidermis is delicate, the skin is suddenly affected by fruit acid, the stratum corneum is eroded, and the intercellular lipids are slightly damaged. Then the nerve endings are slightly stimulated, causing a burning sensation. This may be the process of skin adaptation, and it is normal.

Also, the skin state varies. If the skin is already sensitive and weak, or damaged by sun exposure or external force, its barrier function is damaged and its defense is weak. Using glycolic acid at this time is tantamount to adding cream to the snow, and the burning sensation will be intense. However, this is not the fault of glycolic acid, and it is reasonable for the skin itself.

Furthermore, the method of use is related to the burning sensation. If the dosage is excessive and the application is uneven, the concentration of glycolic acid in the local skin will be too high, the stimulation will increase sharply, and the burning feeling will appear. Or the frequency of use is improper, and it is not gradual according to the skin's tolerance, which is also easy to cause this feeling. This is all due to improper use, and it is not inherent in glycolic acid, which is also within common sense.

Therefore, the burning feeling caused by glycolic acid, or caused by skin adaptation, its own state or improper use, is mostly common sense. However, if the burning feeling is severe and long-lasting, causing skin damage, it should be stopped and consulted a doctor to ensure the safety of the skin.