Part1. Niacinamide b3 vitamin - an anti-aging ingredient recognized in the field of skin science
Niacinamide is a derivative of vitamin B3, and it is also a recognized skin anti-aging ingredient in the field of cosmetic dermatology. In recent years, people have paid more and more attention to it. Its most important effect in skin anti-aging is to reduce and prevent skin from aging Dull, sallow, sallow complexion that occurs during the aging process.
Part2. Improving skin resistance
The contribution of niacinamide to the skin is far beyond those mentioned above, and it can also repair the damaged lipid barrier of the stratum corneum and improve skin resistance.
Part3. Deep water locking and moisturizing effect
There are also some effects that may be overlooked by people, which is the deep water-locking effect of niacinamide. Therefore, skin care products containing niacinamide have strong water-locking and moisturizing effects.
Part4. Regulating the density of melanosomes
When the concentration of nicotinamide was 0.25mg/mL and 1.25mg/mL, the movement rate of melanosomes in melanocytes increased significantly (P<0.05), and the density of melanosomes in cells increased with the concentration of nicotinamide while falling. Conclusion: Niacinamide participates in the transport process of melanin and can accelerate the movement rate of melanosomes in melanocytes. It shows that nicotinamide can regulate the calcium pump, the expression of Dynein and the movement of melanosomes. an important regulating factor.
Part5. Improving dull skin
As we age, the skin becomes dull and dull, which can be improved by topical niacinamide. A randomized study showed that using niacinamide stock solution twice a day, the skin texture was significantly improved from the 8th week, and the fine lines and wrinkles were significantly reduced; the skin became more elastic, the pigmentation and erythema were significantly reduced, the dark yellow was significantly reduced, and the skin appeared. shiny.
Part6. Reducing glycation reactions
The content of NADH and NADPH in aging skin gradually declines, both of which control the whole process of synthesis and decomposition in cells. As the precursor of NADH and NADPH, nicotinamide can play a role by regulating the balance of the two levels in the body. High levels of NADPH exert a powerful antioxidant effect, preventing spontaneous glycation reactions of proteins and sugars. The glycated protein produced by the glycosylation reaction is deposited in the dermis and appears yellowish brown. The glycosylation product between dermal collagen of 80-year-old skin is 5 times that of 20-year-old skin. Glycosylated protein plays an important role in the dark yellow appearance of aging skin. Niacinamide increases NADPH to exert anti-glycosylation effect, thereby reducing the yellowing of aging skin, reducing facial discoloration, and improving skin quality.
Part7. Improving enlarged pores
Enlarged pores are one of the skin texture concerns. Topical niacinamide can reduce the production of fatty acids and triglycerides in sebum, thereby reducing the size of pores and reducing the severity of acne breakouts.
Part8. Enhancing skin barrier function
Ceramides are important components of the skin barrier. The content of ceramide in the stratum corneum of atopic dermatitis, elderly skin and winter dry skin was significantly reduced. Niacinamide enhances the skin barrier function and reduces transepidermal water loss by increasing the content of ceramide in the stratum corneum.
