Study on the onset time of azelaic acid
Azelaic acid, used in skin care, its onset time limit is often inquired by everyone.

Cover the skin is different, and the onset time is also different. Usually, the first use of azelaic acid, if the skin adapts well, after half a month, it may be slightly effective. At this time, such as the genus of acne and pimples, there may be a slight reduction.

However, if you want a significant change, you need to stick to it for two months. The color of the skin gradually evens out, and the redness, swelling and inflammation also slow down. Because azelaic acid has antibacterial and anti-inflammatory properties, and can adjust the keratosis of the hair follicle mouth, it has a good effect on common acne and other diseases.

If it is used for light spot whitening, due to the skin's metabolic cycle of about 28 days, if you want to see the appearance of fading spots and brightening skin tone, you often need to apply it continuously for more than three months to get brighter results.

When it takes effect, it is not only about how long it takes. The method of application is also the key. At the beginning, it is advisable to apply a small amount of thin coating to make the skin gradually adapt, and then you can gradually increase the dosage according to the skin's tolerance. And you need to pay attention to sun protection. Use it during the day, especially when the protection is comprehensive, otherwise it may affect its effect.

After all, the effect of azelaic acid can be adhered to and used properly, and it will take time to see the skin's new appearance.