On the use of glycolic acid and retinol in anti-aging
If you want a wonderful way to resist skin aging, glycolic acid and retinol are the key choices. Glycolic acid belongs to the class of fruit acids, and its molecules are the smallest, which can travel smoothly through the stratum corneum of the skin. It can promote the metabolism of keratinocytes, make the old and waste keratin quickly separate, and the skin is tender and smooth, and the color is uniform.

Retinol is a derivative of vitamin A, which helps the skin cell renewal a lot. It can stimulate collagen production, make the skin firm and elastic, and wrinkles gradually disappear.

Glycolic acid is long for superficial keratin conditioning, but it may cause skin sensitivity at the beginning of use, such as redness and itching. It is better to gradually increase the concentration and frequency of use, starting from a low concentration, and waiting for the skin to adapt.

Although retinol has good repair effect on deep skin, it is also easy to cause discomfort. Because it sensitizes the skin, it is easy to cause photosensitivity during daytime use, so it should be used at night. At the beginning of use, a small amount of thin coating should also be applied to make the skin slowly tolerate.

If you want to use both, you must use them step by step. Glycolic acid can be used first to build tolerance, and then retinol. However, both are irritating to a certain extent, and it is especially prudent to use them. To start using it, it is recommended to take a few days apart, observe the skin's reaction, and then make adjustments.

In general, glycolic acid and retinol are both good at winning the field, and rational use can add to the cause of anti-aging. The way to use it, however, is to know the characteristics of the skin and be prudent in order to achieve the wish of beautiful skin anti-aging.