On the principle of sharing glycolic acid and azelaic acid
for the skin, the combination of chemical agents is very important. Glycolic acid and azelaic acid are both commonly used in skin care, but the method of sharing them cannot be ignored.

Glycolic acid belongs to alpha-hydroxy acid, which has excellent exfoliation effect. It can loosen the connection between keratinocytes, promote the shedding of old waste keratin, and accelerate the renewal of the skin surface. When used properly, it can make the skin delicate and smooth, brighten the color, and stimulate the synthesis of collagen in the dermis, which helps to improve skin texture and reduce fine lines.

Azelaic acid, which is mild in nature, can inhibit the activity of tyrosinase and block melanin production, so it has the effect of whitening light spots. At the same time, it has an inhibitory effect on Propionibacterium acne, which can improve acne vulgaris, reduce redness and swelling, and smooth acne marks.

If the two are shared, it should be done according to the quality of the skin. If the skin is healthy and well tolerated, you can try it gradually. At the beginning, use low-concentration glycolic acid products, such as 2% - 5% concentration, and use them the next day to make the skin gradually adapt to its irritation. After a few weeks, if the skin is no different, then use glycolic acid products at night when skin care, until the skin is slightly dry, apply a thin layer of azelaic acid. It should be noted that sensitive areas such as the eye area and lips should be avoided when applying.

Those with sensitive skin should be used with caution. The irritation of glycolic acid may cause redness, tingling, and desquamation of the skin. Azelaic acid is relatively mild, but it may also cause discomfort. For such skin types, first use soothing and repairing products to condition the skin to enhance its tolerance. You can take a small amount of glycolic acid and azelaic acid products first, try them behind the ear or on the inside of the forearm, and observe for 24-48 hours. If there is no allergic reaction, then try them on a small area of the face. At the beginning, the frequency of use should be low, such as 1-2 times a week. Later, depending on the skin condition, increase the frequency and dosage.

During the sharing of glycolic acid and azelaic acid, sun protection is the top priority. Both can make the skin more sensitive to ultraviolet rays, and if not properly protected, it is easy to cause pigmentation. When going out during the day, apply a high-multiple sunscreen, supplemented by physical sunscreen methods, such as holding an umbrella, wearing a hat, etc.

In short, the sharing of glycolic acid and azelaic acid can achieve skin beauty, but it needs to be used step by step and cautiously according to the characteristics of the skin, in order to achieve the expected beauty and keep the skin healthy.