On the use of glycolic acid when it stays on the skin
The way of skin care for husband, the use of glycolic acid is gradually expanding. However, the length of time it stays on the skin is very important, and it is related to the efficacy and skin safety.

For those who use glycolic acid for the first time, it is recommended to start from a short time. When covering the skin's first contact with this acid, it needs to be slow and appropriate. Generally, glycolic acid can be placed on the skin for a few minutes, about three to five minutes. At this time, the skin can feel its gentle effect, and there is less discomfort.

If the skin tolerates it well, after several trials, it can gradually increase the length of its stay. However, it should not be too hasty, and each increase should take a few minutes. It can be increased to about ten minutes. At this time, the effect of glycolic acid can be more obvious, which can help the skin rejuvenate, remove old keratin, and make the skin delicate and shiny.

However, the control of duration cannot be generalized. Different skin types require different durations. Dry skin, its texture is delicate, and the stay time should be slightly shorter to prevent excessive irritation and damage to the skin barrier. Oily skin, with strong tolerance, can be extended for a while, but it cannot be extended arbitrarily.

And the state of the skin changes at any time. In case of skin discomfort, such as redness and tingling, even if it is well tolerated on weekdays, the glycolic acid should stay for a long time, or even stop using it temporarily, and then consider it when the skin recovers.

In short, when glycolic acid stays on the skin for a long time, it should be changed flexibly according to the characteristics and tolerance of the skin with caution, in order to achieve the best effect of skin care and protect the health of the skin.