Umlobi: Peter Berry
Usuku Lokudalwa: 18 Ujulayi 2021
Ukuvuselela Usuku: 24 U-Okthoba 2024
Anonim
I-Octinoxate kuzimonyo: Okufanele Ukwazi - Impilo
I-Octinoxate kuzimonyo: Okufanele Ukwazi - Impilo

-Delile

Ukubuka konke

I-Octinoxate, ebizwa nangokuthi i-Octyl methoxycinnamate noma i-OMC, iyikhemikhali elisetshenziswa kakhulu emikhiqizweni yokunakekelwa kwezimonyo nezikhumba emhlabeni jikelele. Kodwa ingabe lokho kusho ukuthi kuphephile kuwe nasemndenini wakho? Izimpendulo zixubekile.

Kuze kube manje, abukho ubufakazi obuningi bokuthi leli khemikhali lidala ukulimala okukhulu kubantu. Kodwa-ke, kukhonjisiwe ukuthi kungaba yingozi ezilwaneni nasemvelweni.

Ngenkathi kuqhubeka izifundo ezinzulu okwamanje, izifundo zesikhathi eside kusafanele ziphothulwe ngokuthi i-octinoxate ingathinta kanjani umzimba womuntu ngokuhlelekile. Nakhu esikuvezile ngalesi sengezo esiyimpikiswano.

Yini i-octinoxate?

I-Octinoxate isekilasini lamakhemikhali enziwe ngokuxuba i-acid ephilayo notshwala. Kulokhu, i-sulfuric acid ne-methanol kuhlangene kwenza i-octinoxate.

Leli khemikhali laqala ukwenziwa ngawo-1950 ukuhlunga imisebe ye-UV-B elangeni. Lokho kusho ukuthi kungasiza ukuvikela isikhumba sakho ekushisweni yilanga nomdlavuza wesikhumba.

Kusetshenziselwani?

Njengoba ubungalindela, njengoba i-OMC yaziwa ngokuvimba imisebe ye-UV-B, uzoyithola kaningi ohlwini lwezithako zama-sunscreen angaphezulu kwekhawunta. Abakhiqizi basebenzisa njalo i-OMC kuzo zonke izinhlobo zemikhiqizo yezimonyo nezokunakekela ukusiza ukugcina izithako zabo zintsha futhi zisebenza kahle. Kungasiza futhi isikhumba sakho ukumunca kangcono ezinye izithako.


UkuBheka kuphi

Ngaphezu kwama-sunscreen ajwayelekile, uzothola i-octinoxate emikhiqizweni eminingi evamile (engajwayelekile) yesikhumba nemikhiqizo yezimonyo, kufaka phakathi isisekelo sokwenza izimonyo, idayi yezinwele, i-shampoo, i-lotion, i-nail polish, ne-lip balm.

Ngokusho kwe-Household Products Database evela eMnyangweni Wezempilo kanye Nezinsizakalo Zabantu wase-U.S., Izinkampani ezijwayelekile ezifana neDove, L'Oréal, Olay, Aveeno, Avon, Clairol, Revlon, nezinye eziningi, zonke zisebenzisa i-octinoxate emikhiqizweni yazo. Cishe yonke imishini ejwayelekile evikela ilanga iyisebenzisa njengesithako esiyinhloko.

Kungadingeka ukuthi umbe ujule ohlwini lwezithako ukubona ukuthi umkhiqizo wenziwe nge-octinoxate. Ibizwa ngamagama amaningi, ngakho-ke ngaphezu kwe-octinoxate ne-octyl methoxycinnamate, kuzodingeka ubheke amagama afana ne-ethylhexyl methoxycinnamate, escalol, noma neo heliopan, phakathi kwamanye amagama amaningi.

Kepha ingabe i-octinoxate iphephile?

Nakhu lapho izinto zikhohlisa. Yize okwamanje kuvunyelwe ukusetshenziswa e-United States, i-U.S. Food and Drug Administration (i-FDA) ivimbela amandla efomula ibe ngu-7.5% we-octinoxate concentration.


I-Canada, i-Japan ne-European Union nazo zibeka imingcele ekutheni umkhiqizo ungaqukatha malini. Kepha ngabe le mikhawulo yanele ukugcina abathengi bephephile kunoma yikuphi ukulimala okungabangelwa yi-OMC?

Ucwaningo oluningi lubonisa ukuthi i-octinoxate ingaba nemiphumela eyingozi ezilwaneni, nasemvelweni. Kepha kuze kube manje, ucwaningo olunzulu ngabantu lilinganiselwe.

Iningi lezifundo zabantu zigxile ekukhathazekeni okubonakalayo njengokuqubuka kanye nokwaliwa yisikhumba, futhi akubonisanga ukulimala okukhulu kubantu. Kodwa-ke, ukuqhubeka nocwaningo kukhombisa ukuthi kungahle kube semthethweni ekukhuleni okukhathazayo kwezempilo nokuphepha abantu abaningi abakukhuphulayo.

Izinduna

Noma kuvame ukufakwa emikhiqizweni yokunakekelwa kwesikhumba ukwenza ibala lakho libukeke kangcono, abanye abantu bathi i-octinoxate ibanga induna.

Olunye ucwaningo luthole ukuthi i-octinoxate ingadala ukusabela kwesikhumba okungathandeki, njenge-acne nokuxhumana nedermatitis kubantu. Kepha lokhu kukhonjiswe kuphela ukuthi kwenzeka kubantu abambalwa abanokungezwani komzimba okuthile nesikhumba.

Ukukhathazeka ngokuzala kanye nentuthuko

Ucwaningo oluningi seluphethe ngokuthi i-octinoxate ingadala izinkinga zokuzala, njengokubalwa kwesidoda esiphansi kwabesilisa, noma izinguquko kusayizi wesibeletho ezilwaneni zaselebhu ezazivezwe kumithamo elinganiselayo noma ephezulu yekhemikhali. Kodwa-ke, lezi zifundo zenziwa ezilwaneni, hhayi kubantu. Izilwane ziphinde zavezwa emazingeni aphezulu amakhemikhali kunalokho okusetshenziswa ngaphandle kwesethi yelabhu.


Izifundo eziningi ezinamagundane zithole ubufakazi obuqinile bokuthi i-OMC ingathinta kabi amasistimu angaphakathi. I-Octinoxate, ngokuqinisekile, itholakale ukuthi "iyisiphazamiso se-endocrine," ezilwaneni, okusho ukuthi ingaguqula indlela ama-hormone asebenza ngayo.

Iziphazamisi ze-Endocrine aziqondakali ngokuphelele, kepha kucatshangwa ukuthi zibeka engcupheni enkulu yokuthuthukisa amasistimu, njengengane noma umntwana osanda kuzalwa. Iziphazamisi ze-Endocrine zixhunyaniswe eduze nemiphumela emibi ekusebenzeni kwe-thyroid.

Okunye ukukhathazeka okuhlelekile

Okunye ukukhathazeka okukhulu ukuthi i-OMC imunca ngokushesha ngesikhumba nasegazini. Kutholakale i-OMC emchameni womuntu. Kutholakale ngisho ebisini lomuntu lwebele. Lokhu kudale ukuthi ababhali besifundo esisodwa sango-2006 baphakamise ukuthi ukuvezwa okuthe xaxa kwamakhemikhali afana ne-OMC ngezimonyo kungaba nomthelela ezigamekweni eziphezulu zomdlavuza webele kubantu, yize zikhona, kuze kube manje, azikho izifundo zabantu zokufakazela lokho.

Ucwaningo oluningi ludingeka ukuthi kunqunywe ubungozi besikhathi eside obungaba khona kubantu. Okwamanje, amazinga alinganiselwe ahlala ejwayelekile njengoba kuvumelekile ezinkulungwaneni zemikhiqizo nezimonyo. Ezinye izifunda, noma kunjalo, zisungule imingcele yazo ye-OMC ngenxa yokuthuthukisa ubufakazi bomphumela wayo kwezemvelo.

Ukulimaza imvelo

NgoMeyi ka-2018, ngokwesibonelo, abomthetho eHawaii baphasisa umthethosivivinywa wokunqanda ukusetshenziswa kwama-sunscreen aqukethe i-octinoxate. Lo mthetho omusha ufike ezithendeni zocwaningo lwango-2015 olukhombisa ukuthi i-octinoxate inegalelo “ekuhlanzeni amakhorali.” Ngokwalolu cwaningo, amakhemikhali asesigcini selanga ayingxenye yesizathu sokuthi ama-coral reef emhlabeni wonke afa.

Okubalulekile

Inani elilinganiselwe le-octinoxate ebuhleni nasemikhiqizweni yokunakekelwa komuntu yinto ejwayelekile engqubuzanayo emhlabeni wonke. I-FDA inqume ukuthi abukabi bikho ubufakazi obenele bokuthi iyingozi kubantu ukuyisusa ekusetshenzisweni okuvamile. Yize izifundo zikhombisile ukuthi zidala ukulimaza amagundane nemvelo.

Ososayensi abaningi kanye nabathengi bakuthatha njengekhemikhali eliyingozi elidinga ucwaningo oluningi, ikakhulukazi kubantu. Kusukela manje, ukukhetha ukuthi usebenzise noma cha ukusebenzisa imikhiqizo equkethe i-octinoxate kushiyelwe kuwe.

Ezinye izindlela ze-octinoxate

Uma ufuna ukugwema izingozi ezingaba khona ze-octinoxate futhi usebenzise imikhiqizo yokunakekelwa komuntu siqu engenayo le khemikhali, lungela inselelo. Izitolo zokudla okunempilo, izitolo ezikhethekile kanye nokuthenga nge-inthanethi kungenza usesho lwakho lube lula. Kodwa-ke, ungacabangi nje ukuthi imikhiqizo enelebula enamagama afana nokuthi "yemvelo" izoba mahhala ngokuzenzakalela kwi-OMC. Sesha kuhlu lwezithako lwawo wonke la makhemikhali amagama ahlukahlukene.

Ama-sunscreen angumkhiqizo okungenzeka ukuthi uzodinga ukuwufaka esikhundleni. I-Octinoxate ingenye yamabhulokhi elanga anamandla amakhemikhali atholakala futhi iningi lemikhiqizo lisayisebenzisa. Kodwa-ke, izikrini zemvelo zamaminerali zemvelo ziyanda.

Lapho izikrini zelanga ezivamile zisebenzisa amakhemikhali afana ne-octinoxate ukumunca nokuhlunga imisebe yelanga eyingozi, izikrini zelanga zamaminerali zisebenza ngokudukisa ilanga. Bheka izinketho ezifaka kuhlu i-titanium dioxide noma i-zinc oxide njengesithako esisebenzayo.

Imikhiqizo efana ne-Goddess Garden, Badger, neMandan Naturals ikhiqiza lokho okuvame ukubizwa ngokuthi yi-"reef-safe" sunscreen esebenza ngaphandle kokusebenzisa i-OMC. Ngokuya ngokuthi uhlala kuphi, ungahle uthole noma ungatholi le mikhiqizo ekhethekile emashalofini esitolo sakho sendawo.

Izitolo eziku-inthanethi ezinjenge-Amazon zinenqwaba yama-sunscreen angenawo u-octinoxate ongakhetha kuwo. Udokotela wesikhumba sakho angaphinde ancome noma anikeze umkhiqizo ongenayo i-octinoxate ozokusebenzela.

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