Can I be allergic to niacinamide? Niacinamide allergy symptoms, how long does niacinamide allergy ta

Generally speaking, no, niacinamide is generally used in skin care products, if you feel uncomfortable after using it, it is niacinamide intolerance, as long as you slowly build up tolerance. The nicotinamide stock solution I usually use contains 3% niacinamide, which fully meets the tolerance standard.

Some patients may be allergic to it, and many people will be allergic to nicotinamide-containing products. Symptoms of allergies are envelope**redness, itching, stinging, etc. The factor of allergy lies in the niacin in niacinamide.

As mentioned earlier, nicotinamide has the best stability in a solution with a pH of 6. In a solution with a pH above or below 6, it hydrolyzes to form niacin, which can lead to allergies. Therefore, formulations containing niacinamide generally control the pH between 5-7 to reduce the formation of niacin.

The widespread use of niacinamide does not rule out the absence of allergies, on the contrary, due to the intolerant properties of niacinamide, allergies to the use of niacinamide products often occur. The symptoms of allergies are very common, mainly redness, stinging and itching, so when using products containing niacinamide, you should do a good test, you can apply it on the wrist to observe the phenomenon, if there is no allergy, you can use it.

I have used it and have no allergies.

You can first test your neck for allergies, and if you have an allergic reaction, stop using it immediately.

Intolerance is the biggest disadvantage of niacinamide. Because nicotinamide is most stable in solutions with a pH of 6, a hydrolysis reaction occurs in solutions with a pH greater than or less than 6 to form niacin. The pharmacology and toxicity of niacin is higher than that of niacinamide.

It is this niacin that causes allergic reactions in a subset of the population. These include redness, itching, stinging, acne and other symptoms, and these symptoms are more likely to occur in cold, dry climates. Therefore, don't rely on your previous thick skin to use high-concentration niacinamide products indiscriminately, you must start with the low-concentration product spot trial step by step, and then try the niacinamide product normally after two or three days of testing period and establishing tolerance, otherwise, the intolerance reaction is very painful!

Moreover, I would like to correct and emphasize a point of view: the intolerance of niacinamide is not directly related to whether it is sensitive or not. The implication is that even if you have thin skin and are prone to allergies, you may be able to tolerate niacinamide without allergic reactions; On the contrary, if you usually have thick skin and non-sensitive skin, you may also be intolerant to niacinamide, and even have various allergies (but **Sensitive people with red blood are more likely to have intolerance than ordinary people, so it is recommended that sensitive skin should not be used easily).

Niacinamide skin care products are also a kind of skin care products that most people are familiar with, and the popularity of niacinamide is relatively large recently, and many people are scrambling to use niacinamide skin care products to maintain**. To a certain extent, it can indeed play a role in maintenance, but some people will also be allergic to niacinamide, so what are the symptoms of niacinamide allergy? How long does it take for a niacinamide allergy to recover?

Niacinamide allergy symptoms include**redness, itching, stinging, acne, etc. These symptoms are more likely to occur in cold, dry climates. If it is an allergic reaction caused by niacinamide, it can generally return to normal within 3 to 7 days after stopping and continuing to use.

However, the symptoms manifested by each person after allergies are different, the best measures taken after allergies are also different, and the time for the disappearance of allergic symptoms is also different. If the allergy symptoms are not severe, stop using it and drink plenty of water, but if the allergy symptoms are severe, you need to use anti-allergy drugs**.

It is important to know that the functionality of skin care products with niacinamide ingredients is relatively powerful, so it is also easier to cause some ** reactions, for some ** more sensitive or slightly sensitive people, it is recommended to do an allergy test behind the ears before use. Continue to use after confirming that you are not allergic, and use a small amount for the first time, and continue to increase the amount after the skin has accepted the product.