What effect does vitamin B family have on beauty and health?

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Update time : 2020-04-22 10:06:00
This article continues to talk about the relationship between vitamins and beauty and health. The protagonist is: Vitamin B, mainly including Vitamin B3 and B6.
The role of nicotinamide (niacinamide) in skin care
Vitamin B3 refers to nicotinamide (niacinamide) or its derivative nicotinic acid. The former is a form used in cosmetics, which is a white solid powder and widely exists in human body. The downstream products mainly participate in the function of electronic respiratory chain of human body, that is, the process of energy generation and transfer. Nicotinamide (Niacinamide) is widely used in skin care, so what effect does it have on skin?
First, nicotinamide (niacinamide) can promote the renewal of skin surface without damaging skin barrier, which is its outstanding advantage. When promoting the renewal of stratum corneum, we usually use exfoliating methods, such as fruit acid, salicylic acid, or physical friction. All these methods may damage the cutin barrier of skin (especially in the case of improper use/overuse), and nicotinamide (niacinamide) can promote skin renewal, but does not cause damage to skin barrier function, which is its excellent feature.
Second, its own irritation is weak, and it can play a good and mild whitening role. Its whitening effect is mainly reflected in inhibiting melanocytes from transferring melanosomes to keratinocytes. As we all know, melanocytes are responsible for synthesizing melanin, and the synthesized melanin is transferred to the surrounding keratinocytes through dendrites like octopus tentacles, giving skin color. In other words, if melanosomes cannot be transferred from melanocytes to surrounding cells, the process of skin coloring cannot be completed, and nicotinamide (niacinamide) plays a key role at this level.
Thirdly, nicotinamide (niacinamide) itself has good anti-saccharification effect. Glycation is one of the important mechanisms of skin aging. Just like tsunami, not only the impact of water, but also many chain reactions will be caused. Glycated collagen will also produce various secondary disasters. Nicotinamide (niacinamide) can resist saccharification, and can alleviate the yellowing state of skin (one of the main manifestations of saccharification), mottled skin color, fragile skin, increased free radicals and other problems to a certain extent.
Fourthly, nicotinamide (niacinamide) can enhance cell viability. NAD and NADH, the downstream metabolites of nicotinamide (niacinamide), participate in the electronic respiratory chain. Simply put, if this process is normal and sufficient, then our skin cells will be full of vitality and keep in good condition; On the contrary, skin cells do not have enough energy. Like hungry people, they have no strength and are in a bad state. In this metabolic process, nicotinamide (niacinamide) is essential.
In addition, the study found that nicotinamide (niacinamide) also has a certain effect on oil control, so nicotinamide (niacinamide) can also be used in acne-removing products, and even the literature records that 4% nicotinamide (niacinamide) can be compared with 2% salicylic acid for external acne-removing effect (Kaymak Y, ö nder M. An investigation of effectiveness of topical niacinamide for the treatment of milk and modern acne vulgaris [J]. J Turk Acad Dermatol, 2008, 2 (4): jtad82402a.) Unfortunately, I have not personally observed this powerful acne removal ability, but one thing is certain, nicotinamide (niacinamide) is helpful for acne removal.
Fifth, nicotinamide (niacinamide) is also very important for the health and integrity of epithelium. There is a disease called nicotinic acid deficiency in dermatology. It should be noted that nicotinic acid is a downstream metabolite of nicotinamide (niacinamide). If nicotinic acid is lacking, the skin will become particularly sensitive to light damage, and the skin will turn purple and red after irradiation, which will become terrible. Therefore, nicotinamide (niacinamide) also plays a very important role in epithelial cells and light response. Lack of nicotinamide (niacinamide) can lead to dysfunction of epithelial cells, so nicotinamide (niacinamide) is very important for skin health, whether it is taken orally or topically.
I highly recommend you to use nicotinamide (niacinamide). First, because it is cheap, the addition amount of nicotinamide may exceed 5%, 7% or even 10% in many products (expensive raw materials cannot be added in large quantities). Of course, the more nicotinamide (niacinamide) is not added, the better. Generally, 2-4% can play a very good role. Another advantage of nicotinamide (niacinamide) is its mild properties. Even if it is used in a few percent (i.e., single digits), it will not cause too much irritation to the skin. Unlike fruit acid, salicylic acid or some alcohols, the human skin may not be able to tolerate them after increasing their concentration. Therefore, nicotinamide (niacinamide) is very suitable for all kinds of skin types, so you can use it with confidence and boldness.
The role of vitamin B6 in skin care
Another B vitamin worthy of attention is vitamin B6, also known as pyridoxine, which is commonly used in cosmetics such as pyridoxine hydrochloride. According to historical documents, vitamin B6 is mainly related to sebum secretion, which can inhibit sebum secretion, thus improving pores, blackheads and acne. So far, vitamin B6 is not as popular as nicotinamide (niacinamide), but it may also lead the trend in the future. After all, the cosmetics industry has turned around, and people in Jiangshan have their own components, each leading the way for several years. Of course, few ingredients can become evergreens for decades like vitamins C, E, nicotinamide (niacinamide) or vitamin A.
Suggestions on the use of B vitamins
Nicotinamide (Niacinamide), a B vitamin component, does not need special attention because it is mild to use, has no special adverse reactions, and will not improve the photosensitivity of skin, and its upper limit of safe dose is very high. Here, I only remind you that besides skin application, it is also very important to take vitamin B orally. The upper limit of safe dose of vitamin B supplementation for oral administration is very high, because it is water-soluble, so it can be easily excreted. .
Personally, I have a profound understanding that if I stay up late the night before, my lips will become particularly dry the next day, which is because the epithelial function will be affected: when I stay up late, I will lose a lot of water-soluble vitamins and antioxidants, especially vitamins B, resulting in the so-called "excessive internal heat" phenomenon. Symptoms can improve quickly after supplementing B multivitamins, and the drugs are particularly cheap, so you can try them. It should be noted that vitamin B complex tablets are usually yellow, because vitamin B2 (also called riboflavin) is yellow, and there are many riboflavins (and carotenes) in egg yolk, which is why it is yellow. After taking compound element B tablets, your urine may turn yellow. Don't panic, this is a normal phenomenon.
With regard to the relationship between vitamin B and skin health and beauty, and the corresponding supplementary methods, this article is popular science here, hoping to help everyone's beauty and health plan, and also hoping that the dream of "making the world free of ugly skin" can be realized as soon as possible!
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