Nicotinamide is a member of the B vitamin group. It is not only used in clinical medicine to treat stomatitis, tongue inflammation, and dermatitis but also has been regarded as a star ingredient in skincare and is very popular in the beauty field.
Cosmetic grade niacinamide is an application level of niacinamide, mainly used in cosmetics and skincare products, the dosage is 2%~5%, the dosage is more suitable for the skin, this is found through numerous studies, and small irritation, excessive dosage is easy to stimulate the skin and cause allergy, too little dosage can not play a role.
The safety of cosmetic-grade niacinamide is beyond doubt. However, due to the presence of an impurity in cosmetic grade niacinamide – niacin, it is the presence of niacinamide that may cause allergic symptoms such as itching, peeling, redness, and so on in some people who use cosmetic grade niacinamide skin care products. When buying cosmetics or skin care products, you can generally use samples, trial packages, or small areas to test the adaptability of the skin and avoid allergic symptoms when using large areas.