On the application time of glycolic acid to the scalp
For those who use glycolic acid, when it is used for scalp care, there are different opinions on the length of time, but it is actually related to many ends.

When the skin is not used to it for the first time, it should be short. Cover the scalp skin is delicate and has a different tolerance to acid irritation. For beginners, you can hold it for a few minutes. For example, three to five minutes, observe the response of the scalp. If there is no abnormal feeling, no redness, swelling or itching, it can be gradually increased.

However, it should not be applied rashly for a long time. Normally, if the scalp is healthy and well tolerated, the application time may be extended to about fifteen minutes. However, this is not a fixed number and needs to be adjusted according to people. If it is a sensitive scalp, even if you try it for a long time, you should control it within ten minutes. Beware of excessive stimulation, damage to the microenvironment of the scalp, and cause hair dystrophy, desquamation and other diseases.

In addition, the concentration of glycolic acid is also left and right for the duration of application. For low concentrations, the stimulation is slightly delayed, which can be moderately delayed; for high concentrations, although the effect may be good, the stimulation is also dramatic, and the use time must be short. Therefore, read the product description carefully before use, understand the concentration, and determine the duration of application according to the quality of your scalp. It is a good strategy for maintaining the scalp and hair care.

In general, when applying glycolic acid to the scalp, it is necessary to exercise caution, observe the state of the scalp, balance the concentration, and gradually, in order to achieve the effect of maintenance and avoid the risk of damage.