When using nicotinamide skin care products, try to choose cosmetics of the same brand. It is not recommended to mix them up so as not to affect the effect of nicotinamide. At the same time, we must avoid using them together with cosmetics containing salicylic acid.
For those who have red blood on their face, it is recommended to temporarily stop using nicotinamide to avoid skin irritation and aggravation of damage.
Although nicotinamide has a good local effect, it still plays an auxiliary role. Therefore, the formula coordination of products with nicotinamide is very important, and can not be arbitrarily matched to affect the effect.
