What side effects does nicotinamide have on the skin? Many people will have many skin care products, some of which will contain nicotinamide, but some people will be in a bad situation after using them. Let's share the side effects of nicotinamide on the skin.

What side effects does nicotinamide have on the skin? 1 1, red.

Nicotinamide is a very common whitening product in life. After using it for a period of time, it really has a good content effect on the skin. But if you don't use it as required, there will be a red reaction, so you must pay attention to it in your daily life and use it according to the instructions.

2, acne

Nicotinamide has the function of treating acne muscles, but it can also help acne if used improperly. This is related to the concentration of nicotinamide. Too high a concentration will irritate the skin surface and make the skin feel uncomfortable. In this case, it is best not to continue to use it.

3, peeling

Nicotinamide is still irritating to the skin, so if it is used improperly, it will easily cause peeling symptoms, so stop using it at this time and continue using it after the skin condition recovers, because at this time the skin will establish tolerance. If you really can't use it, you can also stop using it permanently.

4, itchy skin

Nicotinamide can easily cause skin discomfort, and many people will have itching symptoms after using nicotinamide. Therefore, it is best to stop taking medicine after itching.

What side effects does nicotinamide have on the skin? 2. Nicotine

Nicotinamide, also known as VB3, is an important member of the vitamin family. The historical time of scientific research on nicotinamide: As early as 1974,' American Girish Parsad Mathur and others first discovered that 1 ~ 5% vitamin b3 and 1 ~ 4% sunscreen isolation agent were mixed into the cream management system to achieve the effect of whitening skin. The mechanism is that vitamin b3 can stimulate cyclic 3,5 polypeptide chain phosphodiesterase, which can dissolve 3,5- cyclic adenylate which stimulates melanocyte growth hormone into adenine -5- monophosphate, thus reducing the conversion of pigment into.

Second, the side effects of nicotinamide on the skin

Everything has advantages and disadvantages. Nicotinamide also has its disadvantages. The most important point is that the residue vitamin b3 in its raw materials will cause skin allergies, and some products with high content of nicotinamide may cause skin allergies such as redness. That is what everyone likes to say about nicotinamide intolerance. Therefore, nicotinamide used in skin care products pays attention to the control of raw materials or residues, and the secret recipe design scheme and processing technology have an impact on this matter. Here, many enterprises have carried out deeper scientific research and produced many perfect commodities.

1, nicotinamide turns the skin red.

I don't want to repeat red. Many people have said that they don't like to say it. In short, if you have sensitive skin or big skin, the stimulation of nicotinamide itself is likely to cause redness, skin allergy and even ... swelling.

Adults' advice on sensitive sister paper is to try nicotinamide on the arm or behind the ear first, and then use it on the face, so as not to be red, allergic or stinging.

And you don't have to eat a big fat man in one bite. The tolerance level of nicotinamide needs to be established bit by bit. You can try to use the concentration value of 1%-2% first, then add 1% one week later, then add 1% two weeks later, and then add ... and so on. Don't buy sister papers with various concentration values.

2. Nicotinamide stimulates the skin, promotes metabolism and accelerates hair growth.

Generally speaking, people can't grow hair follicles, which are skin cells that make hair grow. All hair follicles are born with people, and with people's life, hair follicles cannot be rebuilt after death. In other words, no matter how exciting nicotinamide is, there will be no new "pits" for hair to grow. In other words, your hair only grows in the "pit" that you will have from birth, and the total number is not easy to increase.

One of the functions of nicotinamide is to promote metabolism. In other words, it can stimulate the metabolic rate of your skin, just as it can promote the growth and development of your hair. In other words, your old Mao Mao has grown a little taller because of this "growth hormone".

Three. Nicotinamide action

1, accelerate basal metabolism and promote the shedding of keratinocytes containing pigments.

2. It acts on the pigment that has been produced and reduces its migration to the surface of somatic cells.

3. Promote the production of epidermal protein and improve skin quality.