On the Cause of Glycolic Acid Tingling
Glycolic Acid, when applied to the skin, feels tingling, why is this? The reasons cover several ends.

First, glycolic acid is hydrophilic and has small molecules, so it can quickly penetrate the stratum corneum of the skin. Once inside, it is in close contact with skin cells. However, if the skin is in a fragile state, if its barrier is damaged due to excessive cleaning and sun exposure, the invasion of glycolic acid is like adding insult to injury, stimulating nerve endings and causing tingling.

Second, glycolic acid can promote the metabolism of keratinocytes and accelerate the shedding of old keratin. During this process, the new keratinocytes are still young and have weak tolerance to external stimuli. When the concentration of glycolic acid exceeds the limit that the skin can tolerate, the new cells cannot be disturbed, and it will cause tingling.

Furthermore, individual skin responds differently to glycolic acid. For sensitive skin, the stratum corneum is thin, and nerve endings are more easily exposed. Glycolic acid touches, the nerves are immediately sensed, and tingling occurs, which is more acute than ordinary people.

In addition, if used improperly, it is also a cause of tingling. If the frequency of use is too high, the skin will be irritated again before it recovers; or if applied together with other irritating substances and superimposed irritation, the skin can be irritated and intolerable.

Most importantly, glycolic acid tingling, or due to skin barrier damage, concentration exceeding limit, individual differences and improper use, etc. Users should be reasonable and use it carefully according to their own skin condition, so as to avoid the pain of tingling and enjoy the benefits of skin care.