Azelaic acid, also known as azelaic acid, is a naturally occurring dicarboxylic acid, which is widely used in the field of beauty and skin care. Its effects are described in detail as follows:

1. Antibacterial and anti-inflammatory
Azelaic acid has a significant inhibitory effect on Propionibacterium acne and Staphylococcus epidermidis that cause acne vulgaris. Its mechanism of action is that it can reduce the number of bacteria on the skin surface and hair cysts, reduce the production of free fatty acids by bacteria, and thereby reduce inflammation. In clinical practice, after many acne patients were treated with azelaic acid, the number of inflammatory papules and pustules was significantly reduced, and the phenomenon of redness and swelling was significantly relieved.

Second, regulate the keratinization of the hair follicle mouth
Abnormal keratinization of the hair follicle mouth, resulting in blockage of the hair follicle mouth and inability to excrete sebum normally, which is an important factor in the formation of acne. Azelaic acid can regulate the process of cell keratinization, make the hair follicle mouth keratinization return to normal, prevent excessive accumulation of keratinocytes, keep the hair follicle mouth unobstructed, and then prevent acne. After using azelaic acid-containing products for a period of time, the pores on the surface of the skin can be seen to shrink, and the skin becomes smoother and more delicate.

Third, inhibit the activity of tyrosinase
Tyrosinase plays a key role in the synthesis of melanin. Az For patients with pigmented skin diseases such as melasma and freckles, topical azelaic acid can gradually fade pigmentation, brighten skin tone, and make skin more even and fair.

Fourth, anti-inflammatory effect
In addition to inhibiting inflammation caused by bacteria, azelaic acid also has a regulatory effect on inflammatory cytokines, which can reduce inflammatory mediators triggering inflammatory reactions. This property makes it also therapeutic for inflammatory skin diseases such as rosacea, which can relieve skin redness, burning, tingling and other symptoms.

To sum up, azelaic acid provides an effective solution to a variety of skin problems in the field of skin care with multiple effects such as antibacterial, regulating keratinization, whitening light spots and anti-inflammatory, and is favored by consumers and dermatologists.