Research on the order of use of azelaic acid and vitamin C
The way of skin care, the combination of ingredients, the order is related. Today's discussion of the order of azelaic acid (Azelaic Acid) and vitamin C (Vitamin C) is a question that skin care people often think about.

Azelaic acid has antibacterial and anti-inflammatory properties, and can regulate the keratin, lighten printing and inhibit pigmentation, which is beneficial for acne, acne marks and other diseases. Its mild nature is suitable for all kinds of skin. Vitamin C has strong antioxidant properties, can remove yellow and brighten, promote collagen production, and make the skin firmer and brighter. However, its nature is lively, and it is easily inactivated when exposed to light and heat.

If azelaic acid is applied first, followed by vitamin C, azelaic acid can stabilize the skin first, calm inflammation, adjust keratin, and pave the way for subsequent absorption of vitamin C. And azelaic acid is mild, does not damage the skin barrier, and makes vitamin C work better. And apply vitamin C first, then apply azelaic acid, vitamin C first antioxidants, brightens the complexion, and then uses azelaic acid to consolidate and strengthen the anti-inflammatory light print.

However, if both are used together, you should also pay attention. Vitamin C is acidic, azelaic acid is also acidic, superimposed or increases the burden on the skin. Therefore, for beginners, it is advisable to try it at different times to observe the skin reaction. And when using vitamin C during the day, strict sun protection is required, because it is unstable when exposed to light and heat, and it is easy to turn black.

In short, the order of use of azelaic acid and vitamin C should be selected according to personal skin type and skin care purposes. And use it with caution and step by step, in order to receive the good effect of skin care and rejuvenate the skin.