On the use of glycolic acid for a long time
The use of glycolic acid has attracted much attention in the way of skin care. However, there are different opinions on how long it can be used, and it needs to be analyzed in detail.

The first use of glycolic acid should be done step by step. When the skin first touches this substance, if it is used in high concentrations and high frequencies, it may be difficult to tolerate it. Therefore, at the beginning, when trying it at a low concentration, such as 2% - 5% glycolic acid products, use it every seven days to observe the skin's reaction. If the skin does not experience discomfort, such as redness, tingling, and itching, it can be adjusted gradually.

After the skin adapts, the frequency can be increased. After about half a month, the skin can tolerate it and use it every five days. However, it is still necessary to pay close attention to the skin condition. If there is a slight discomfort, the rhythm should be slowed down.

As for high concentrations of glycolic acid, such as 10% and above, it should not be used easily unless the skin is well adapted and tolerated. Even if the skin is used to low-concentration products, it is necessary to use high concentrations with caution. Use high concentrations for the first time, once every ten days is appropriate, and then depend on the skin to bear it, and gradually adjust the frequency.

When using glycolic acid, the duration is not the only consideration. Seasonal changes and individual differences need to be taken into account. For example, in summer, the skin is vulnerable to heat and ultraviolet rays, and the frequency and concentration of glycolic acid should be reduced; in winter, when the skin is dry, it is also necessary to pay attention to the balance between moisturizing and glycolic acid use.

People's skin is different, oily skin or drier, sensitive skin is more tolerant of glycolic acid, and your mileage may vary over time.

In general, glycolic acid can be used for a long time, and there is no fixed method to follow. It needs to be flexibly weighed according to many factors such as skin tolerance, individual characteristics, and seasonal changes, in order to obtain its benefits and avoid its harm, and achieve the best condition of skin care.