Cosmetic grade nicotinamide belongs to the active ingredient, has multifunctional, mainly used in the cosmetics industry, most of us on its whitening function is very profound impact, of course, it is true, its whitening effect is ideal.
Cosmetic grade nicotinamide in skin care products, cosmetic products, through the use, it can block the muscle bottom cuticle block melanin to keratinocyte transport melanosomes, thereby inhibiting the precipitation of melanin, but this will not affect the activity of tyrosinase and cell proliferation. Block the cell signal channel between keratinocytes and melanocytes, inhibit melanin production, can also act on the generated melanin, reduce the transfer of melanin to surface cells, thereby reducing melanin precipitation.
Cosmetic grade nicotinamide whitening mechanism is roughly the same, cosmetic grade nicotinamide as the whitening effect of the ingredients, generally in the use of 2% to 5% in skin care products, the use of the dosage effect is ideal, if the concentration is too low, will affect the play of its role, too high concentration is easy to cause skin allergy. So in the purchase of the corresponding cosmetic grade nicotinamide skin care products, it is recommended to pay attention to the concentration, can be used in a small area.