Study on the Combination of Retinoic Acid and Glycolic Acid
When physicians discuss the combination of retinoic acid and glycolic acid, they often need to be carefully observed. Retinoic acid, which is strong in nature, has a lot of impact on the skin's keratin metabolism, can promote cell renewal, make the skin rejuvenate, but also easily cause skin sensitivity, dryness, and redness. Glycolic acid is a type of fruit acid, which can loosen the connection between the stratum corneum, thin the stratum corneum, and has the power of skin rejuvenation, or cause skin discomfort.

If the two are used together, the effect may be superimposed, the power of promoting keratin metabolism will increase sharply, and the skin may see rapid improvement, brighter color and finer texture. However, the risk is also obvious, and the appearance of skin intolerance is easy to In mild cases, the skin is itchy and tingling; in severe cases, it may cause redness, swelling, desquamation, and damage to the barrier.

Therefore, if you want to use both, test the sensitivity first. Apply a little to the wrist or behind the ear, and wait for a few hours to see if there is any abnormality. If there is no discomfort, you can use it gradually. At the beginning, the frequency should be small and the amount should be small. For example, use retinoic acid every three or five days, and the concentration of glycolic acid should be diluted every day. After use, take care of the skin, apply mild moisturizing products, and avoid direct sunlight.

And human skin types are different, oily skin or more tolerant, dry and sensitive skin should be especially careful. During the use period, if the skin discomfort intensifies, stop using it immediately, seek medical consultation, and must not make an assertion that will cause skin damage. In this way, the purpose of skin care can be achieved and skin health can be ensured.