How do you build up skin tolerance to nicotinamide?

Nicotinamide is a derivative of vitamin B3, which is widely used in the skincare industry. Nicotinamide has the functions of whitening, anti-aging, moisturizing, oil control, acne removal, etc. Therefore, nicotinamide is added to many skincare brands and products.

Nicotinamide in a solution of pH 6 stability is good, but at pH higher or lower than 6 will occur in the solution of decomposition and formation of nicotinic acid, nicotinic acid, and nicotinamide impurities, it has a role to dilate blood vessels, therefore, some consumers the use nicotinamide product content is higher, there may be redness, swelling, heat, pain and allergy symptoms. In the case of sensitive or dry skin, when the sebum membrane is not perfect or the skin is not tolerant enough, the irritation of nicotinamide itself is likely to lead to allergic symptoms such as redness, which is also known as nicotinamide intolerance.

To prevent this from happening, it is recommended that you apply a small amount of nicotinamide product to the inside of your arms or behind your ears before applying it to your face if there are no abnormalities. If allergic symptoms occur, the skin can first build up a tolerance to nicotinamide. The tolerance to nicotinamide needs to be built up little by little. You can try to use 1% to 2% concentration first, add 1% after a week, then add 1% for two weeks, and then three weeks… And so on, until the normal concentration of the product, here is also recommended that you use a non-woven mask product in the concentration of nicotinamide should not exceed 0.8%.

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