For the ingredient party, buying skin care products pays the most attention to the ingredients, can

Niacinamide can indeed whiten, but niacinamide needs to be commonly used, and it will take several months to have a whitening effect.

Niacinamide can really whiten because the function of niacinamide is to block the transmission of melanin.

Yes. Because niacinamide can slow down the movement of melanin, and it can accelerate the metabolism of melanin, it can really whiten.

Yes, you can get a very good whitening, and you can make your own **cells have a good metabolism in life, and you can make ** become very energetic, you can remove freckles, you can whiten, you can prevent some melanin from appearing on your face, you can anti-aging, and you will make ** have a resistance.

It can play a better role in hydration, and it can also generate hydration to play a better role in locking water, and it can also be particularly good for **, so that ** looks tender and smooth, and it will also have a certain luster, and it can also play a certain whitening role, but the effect is not particularly good.

The benefit of niacinamide is that it can make your own **whiter, can make **more delicate, can make **state better, can make **smoother**, and can have a very good whitening effect. It can indeed have a whitening effect.

The advantage of ** is that it can be improved**, and then it can make ** play a smooth and delicate whitening effect, which is really good for our**. It can really be whitened, and it can be done to a certain extent.

Niacinamide does have a whitening effect. The reason is: nicotinamide can downregulate melanosome transport from melanocytes to keratinocytes, without inhibiting tyrosinase activity or cell proliferation, thereby affecting **pigmentation, it can also interfere with the cell signaling channel between keratinocytes and melanocytes, reducing melanin production.

The effect depends on whether the ingredients are sufficient, and it usually takes a month or two before the whitening effect appears.

The effects of niacinamide on ** also include:1. Whitening. Niacinamide is able to speed up metabolism and accelerate the exfoliation of keratin containing melanocytes.

Niacinamide has a small molecular weight, which can be directly absorbed by epidermal cells, stimulate the vitality of some cells that have declined, promote collagen synthesis, prevent melanin overpigmentation, and achieve the effect of whitening.

2. Oil control and pore reduction.

When the content of niacinamide in skin care products reaches 2%, it can reduce the production of fatty acids and triglycerides in the secreted sebum, achieve the effect of controlling oil secretion, reduce oil secretion, and reduce the pores of the pores, the channel for excreting sebum, will also slowly shrink to achieve the purpose of reducing pores.

The above content reference: Encyclopedia - Niacinamide.

Niacinamide is really useful for whitening skin care.

Dosage and usage

1.Prevention and treatment of pellagra, stomatitis and glossitis: oral: 50 200mg once, 3 times a day. If oral malabsorption is administered, glucose solution can be added intravenously, 25 mg each time, twice a day. At the same time, other vitamins B and vitamin C were added.

2.Prevention and treatment of heart block: 300 400mg once a day, add 250ml of 10% glucose solution intravenously, 30 days for a course of treatment.

3.in the cardiovascular system.

Usually 50 100 mg once a day, 3 times a day; or 50 100 mg plus human glucose solution intravenously once a day. Omen.

**In the case of heart block and sick sinus syndrome, the initial dose is 300 400 mg d, plus 5% 10% glucose solution 250ml intravenous infusion, once a day, gradually increasing to 1200 1400mg d, a course of treatment is 14 to 20 days.