Civil / Zhou Yichuan is made up / Yuan Yue
[Sohu is healthy] when to the Beginning of Summer, prevent basked in frost to become popular commodities again. But, according to CNN website report, published at on May 5 " American cure learns a magazine " a research points out, prevented a few kinds of common and chemical composition in basking in frost to enter human body blood with a day only, among them oxygen benzene ketone is to exceed formulary dosage more 419 times, need undertakes investigating to its security.
The medicaments of American FDA subordinate is evaluated and the research center is high scientist, david Leffell of dermatologist of Yale college of medicine introduces, prevent basking in frost is the blame prescription drug that a kind of prevention and cure basks in at first, have two kinds of kinds. One kind is to use chemical mixture to filter sunshine, another kind is to use mineral hold back sunshine, for instance titanium dioxide, zinc oxide. Latter meeting leaves apparent white coating on the skin, because this chemistry is prevented,bask in frost more welcome.
Prevent if be used at going out to go vacationing,bask in frost prevent bask in without what potential healthy effect, but now more and more advocate every angel to use prevent bask in frost, and should in the body major skin is used, this is worth to be anxious very much. From this, FDA requirement basks in 4 kinds of chemical material in frost to preventing -- 6 Xi acid and the security of 8 propylene undertake ketone of A Fu benzene, oxygen benzene ketone, 10 carbon again safety is evaluated.
In this research, FDA recruit 24 healthy volunteers, they allocate randomly use those who contain 4 kinds of part to prevent bask in sparge (or agent of latex, frost) , the skin of 75% wants the body on besmear, everyday 4, last 4 days. Inside time of 7 days, every volunteer collected 30 blood sample in all.
Result discovery, contain 10 carbon the breast of 6 Xi acid creams the chroma inside the blood of one Queen of heaven after be being used somewhat heighten, and other 3 kinds of chemical material, especially oxygen benzene ketone all appeared remarkable heighten. The chroma that oxygen benzene ketone is absorbed by human body is otherer than what they check 3 kinds of chemical material are lofty about 50 to 100 times, be as high as 209.6 accept to overcome / milliliter, and FDA proposal does not exceed 0.5 accept to overcome / milliliter, exceed bid namely 419 times.
In the research in the past, 2008, american CDC analysed a research of uric fluid example that gathers by the government, oxygen benzene ketone is contained in the example of 97% among them. Oxygen benzene ketone and level of ketone of adolescent boy Gao change of hormone of inferior, male, baby is pregnant time is shorter and be born weight is low between existence is contacted potentially. Be in all preventing to bask in composition in, oxygen benzene ketone is the commonnest prevent ingredient of the allergy that bask in frost, when the person of 70% does allergic test, discover pair of oxygen benzene ketone are allergic.
Taboo contains fatigue of handkerchief of insularity of Hawaiian, Pacific Ocean and Jiweisite recently oxygen benzene ketone and Xin Nuo are prevented especially bask in frost, because they can harm coral, create risk to marine ecosystem.
The European Union has been used new, the material that provides protection more was replaced prevent the oxygen benzene ketone in basking in a product, these material can stop the ultraviolet ray of more danger and long wave ultraviolet ray. But these newer products check without the safety that passes FDA, so oxygen benzene ketone still is used in the United States. A report 2018 estimates, all chemistry that are in the United States are prevented in basking in frost, 2/3 contain this kind of part.
Leffell says, prevent the chemical material in basking in frost to be able to appear a skin to absorb harmful still need farther assessment, and ultraviolet ray still is clearly to cutaneous harm. The American that is diagnosed every year to contract skin cancer is even more than the summation of all and other cancer. And world cancer studies fund says, inside alive bound limits, melanin tumour all ranks the 19th in the male and female, overmuch sunshine illuminate still is the important killer of skin cancer. External use medicines and chemical reagents is appeared the skin is absorbed not infrequent, but manufacturer should offer further proof, this kind appears a skin to absorb whether can cause menace to health.
Chairman FDA Robert Califf also thinks before, chemical material exceeds bid cannot direct with prevent bask in frost poisonous delimit equal-sign. Prevent the optimal dosage that basks in things manufacturer to should do clinical trial to prevent skin cancer in order to check security certainly further, balance risk and accrual at the same time. The infant is the crowd that needs an attention particularly, their body expresses area and total volume scale and adult to differ, the skin also is put in distinction to the absorption of chemical material.
Califf emphasizes, besides use prevent bask in frost, precaution is basked in or skin cancer still has more methods. When daily 10, when sunshine is the most blazing at 14 o'clock, when shadow is shorter than the body, we are in shady and cool place as far as possible activity, perhaps put on long sleeve, trousers and broadbrimmed cap, wear good sunglass. Prevent the skin that basks in frost to be able to be us to provide protection, but do not represent used prevent bask in frost to be able to extend the time below sunshine.
Reference material:
Https://edition.cnn.com/2019/05/06/health/sunscreen-bloodstream-fda-study/index.html
Https://www.dailymail.co.uk/health/article-6997513/Sunscreen-absorbed-blood-concentrations-419-TIMES-safe.html
