A lot of people have some concerns about using cosmetic grade nicotinamide, like do you need to use it at night, out of the light? How is tolerance to cosmetic-grade nicotinamide established? And so on.
First of all, when we use cosmetic grade nicotinamide products, it can be safely used in the daytime, not only do not need to avoid light use, but also use in the daytime, can help us reduce the uv damage to the skin.
Secondly, tolerance of cosmetic grade niacinamide, can begin from two aspects, on the one hand is the concentration of the cosmetic grade nicotinamide, in general, cosmetic grade nicotinamide used in cosmetics, skin care products in the concentration of 2% ~ 5%, and can choose cosmetics level of concentration is low, niacinamide, high grade cosmetics nicotinamide is likely to cause irritation. On the other hand, we can improve the method of using cosmetic-grade nicotinamide products. First, we can apply cosmetic-grade nicotinamide products behind the ears and at the wrist, and observe whether there is sensitization.
Cosmetic grade nicotinamide is a composition with multiple functions to improve the skin for us. When using cosmetic grade nicotinamide, attention should be paid to the method, which helps to play the role of cosmetic grade nicotinamide.