Beauty equipment_How to avoid the aggravation of pigmentation in summer,adult electric toothbrush Fa

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　　When it comes to freckle removal, everyone understands the principle, and the editor has talked about it more than once to remember to pay attention to sun protection, sun protection, and sun protection, whether it is usually or after using the perfect cosmetic device. Pigmentation may creep in after a sun exposure or two. The damage of UV rays to the skin is always cumulative.

　　Darkening is the skin's self-protection

　　The skin can synthesize melanin by itself. If this synthesis ability is reduced, the skin will become sensitive. The incidence of skin cancer in many European countries is higher than that of black Africans, which is why melanin actually protects our cells from damage.

　　UV stimulation causes melanin production

　　There are chromoblasts in everyone's skin epidermis, which can secrete melanin pigment. When ultraviolet rays irradiate the skin, the skin will be in a state of "self-protection", because the ultraviolet rays stimulate the melanin pigment and activate the activity of tyrosinase to protect our skin from damage. Tyrosinase reacts with tyrosine in melanin pigment to produce a substance called "dopa". Dopa is accelerated into dopaquinone under the action of tyrosinase. Dopa is actually the precursor of melanin, which is oxidized by tyrosine to release melanin.

　　Precipitation of melanin to form sunburn

　　Under normal circumstances, if the produced melanin is decomposed and exfoliated normally during the metabolic process, it will not affect the skin tone. Once the metabolism in the body is disordered, when exposed to sunlight or endocrine changes, these melanin cannot be metabolized in time, and will precipitate in the bottom layer of the epidermis, making the skin darker; if it is only partially precipitated, it will form spots or make the original spots darker. Spots are born!

　　What does a sunburn look like?

　　Shape: oval, protruding or smooth, with unclear and regular boundaries.

　　Color: Mainly dark brown, there are also light brown.

　　Location: It is easy to appear in most areas of the face, arms and calves.

　　Symptoms: Initial pain, itching, peeling, and later formation of pigmentation spots.

　　Small habits that can prevent spots

　　1. Usually choose a foundation or BB with an SPF of 15+~ sunscreen is a must~

　　2. Even if it is sunny and cloudy, you must bring a pair of sunglasses, and there are a lot of ultraviolet rays on cloudy days~

　　3. Sun hats can't be missing for a moment in summer~

　　4. If you can go out less in summer, go out less~

　　5. Vitamins A, C, and E have very good anti-oxidant effects, and more supplements can prevent the formation of dark spots.

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