On the combination of glycolic acid and retinoic acid
In modern times, many people have explored the way of skin care. Glycolic acid and retinoic acid are both agents used in skin care, but whether the two can be used together, people have different opinions, and Reddit's theory is quite hotly debated.

or cloud, glycolic acid is a fruit acid and the like, which has the power of loosening keratin adhesions, which can make the old and waste keratin on the surface of the skin fall off, make the skin glow, and can promote collagen synthesis and improve skin quality. Retinoic acid can regulate the proliferation and differentiation of epidermal cells, which has good effects on skin diseases such as acne, and can also improve skin texture and color.

However, it is said that the use of both must be cautious. Glycolic acid thins the stratum corneum of the skin and increases skin sensitivity, while retinoic acid is also irritating. The use of the two together may exacerbate skin discomfort, such as redness, tingling, desquamation, etc. If the skin's tolerance is weak, use it together rashly, and the skin may be overwhelmed.

Some people have tried it themselves and used both according to a specific method, and obtained good results. The method is to first test the skin's tolerance to the two alone, starting with low concentration and low frequency. For example, use glycolic acid every few days, wait for the skin to adapt, and then increase the frequency. The same is true for retinoic acid. Use a small amount at the beginning, and gradually increase the dosage and frequency. And pay attention to skin moisturization when using it, supplemented by gentle skin care products to reduce discomfort.

Generally speaking, it is necessary to use both glycolic acid and retinoic acid, but it needs to be done step by step and cautiously according to the individual skin type. Those who use it first must carefully observe the skin reaction and adjust the way of use in a timely manner, so that it may be effective in the process of skin care and avoid the risk of skin damage.