When discussing whether to use common glycolic acid and retinol at the same time, it is necessary to consider carefully. Glycolic acid is a fruit acid that promotes the renewal of the stratum corneum and improves the texture of the skin; retinol can accelerate cell metabolism, help reduce wrinkles and improve skin tone.

However, using both at the same time may be risky. Glycolic acid will make the skin more sensitive and enhance the transparency of the skin, and retinol itself is also irritating. When the two are used in combination, the possibility of skin irritation is greatly increased, or uncomfortable symptoms such as redness, swelling, tingling, and peeling may occur.

If you insist on using them at the same time, be sure to follow the correct method. In the initial stage, you should use it frequently and in small doses, such as 1-2 times a week, to observe the skin reaction. At the same time, it is necessary to do a good job of moisturizing and sun protection of the skin to reduce irritation. If the skin experiences serious discomfort during use, stop immediately and seek the advice of a professional dermatologist.

In conclusion, although the use of common glycolic acid and retinol at the same time may bring some benefits, for the health and safety of the skin, users need to be extra careful and make an appropriate choice after weighing the pros and cons.