Ugqibe kwelokuba ukusebenzisa i-sunscreen yendalo yeyona ndlela ifanelekileyo kuwe. Mhlawumbi ucinga ukuba yeyona ndlela inempilo kuwe nakwindawo ohlala kuyo, okanye i-sunscreen enezithako ezisebenzayo zokwenziwa ziyakucaphukisa ulusu lwakho olubuthathaka kakhulu.
Emva koko uve ngee-"nanoparticles" kwezinye izithambisi zelanga zendalo, kunye nolwazi oloyikisayo noluphikisanayo malunga nezi ziqwenga ezikunika ithuba lokuma. Ngokwenene, ngaba ukukhetha isithambisi selanga sendalo kufuneka kube yinto edidayo kangaka?
Ngenxa yolwazi oluninzi olukhoyo, lunokubonakala lunzima. Ngoko ke, masiwucime loo msindo size sijonge ngokungenamkhethe ii-nanoparticles kwi-sunscreen, ukhuseleko lwazo, izizathu zokuba kutheni uza kuzifuna kwi-sunscreen yakho kwaye xa ungayifuni.
Zithini iiNanoparticles?
Ii-nanoparticles ziingceba ezincinci kakhulu zento ethile. Ii-nanoparticles zingaphantsi kwe-100 nanometers ubukhulu. Ukunika umbono othile, i-nanometer incinci ngokuphindwe ka-1000 kunobukhulu bomsonto omnye weenwele.
Nangona ii-nanoparticles zinokudalwa ngokwendalo, njengee-minuscule drops ze-sea spray umzekelo, uninzi lwee-nanoparticles zenziwe kwilebhu. Kwi-sunscreen, ii-nanoparticles ezithethwayo yi-zinc oxide kunye ne-titanium dioxide. Ezi zithako zahlulwa zibe zii-ultra-fine particles ngaphambi kokuba zongezwe kwi-sunscreen yakho.
Ii-nanoparticles zaqala ukufumaneka kwii-sunscreens ngeminyaka yoo-1980, kodwa azizange zisebenze kakuhle de kwaba ngeminyaka yoo-1990. Namhlanje, ungacinga ukuba i-sunscreen yakho yendalo ene-zinc oxide kunye/okanye i-titanium dioxide zii-nano-size particles ngaphandle kokuba kuchazwe ngenye indlela.
Amagama athi “nano” kunye “micronized” athetha into enye. Ngoko ke, i-sunscreen enelebhile ethi “micronized zinc oxide” okanye “micronized titanium dioxide” iqulethe ii-nanoparticles.
Ii-nanoparticles azifumaneki kuphela kwi-sunscreens. Iimveliso ezininzi zokhathalelo lolusu kunye nezobuhle, ezifana ne-foundations, i-shampoos, kunye ne-toothpaste, zihlala ziqulathe izithako ezinomkroskopu. Ii-nanoparticles zikwasetyenziswa kwi-elektroniki, amalaphu, iglasi engakrweliyo, nokunye.
IiNanoparticles Zikhusela Ii-Sunscreen Zendalo Ekushiyeni Ifilimu Emhlophe Elusu Lwakho
Xa ukhetha i-sunscreen yakho yendalo, uneendlela ezimbini onokukhetha kuzo; ezo zine-nanoparticles kunye nezo zingenayo. Umahluko phakathi kwezi zimbini uya kubonakala eluswini lwakho.
Zombini i-titanium dioxide kunye ne-zinc oxide zivunyiwe yi-FDA njengezithako zendalo zokukhusela ilanga. Nganye inika ukhuseleko lwe-UV olubanzi, nangona i-titanium dioxide isebenza ngcono xa idityaniswe ne-zinc oxide okanye esinye isithako se-sunscreen esenziweyo.
I-zinc oxide kunye ne-titanium dioxide zisebenza ngokukhupha imisebe ye-UV kude nolusu, zikhusela ulusu elangeni. Kwaye zisebenza kakuhle kakhulu.
Kwimo yazo eqhelekileyo, engeyiyo i-nano size, i-zinc oxide kunye ne-titanium dioxide zimhlophe kakhulu. Xa zifakwe kwi-sunscreen, ziya kushiya ifilimu emhlophe ecacileyo ekhanyayo eluswini. Cinga ngomlindi wobomi oqhelekileyo onomhlophe enqumla ibhulorho yempumlo—ewe, yi-zinc oxide leyo.
Faka ii-nanoparticles. I-sunscreen eyenziwe nge-micronized zinc oxide kunye ne-titanium dioxide ikhuhla ulusu ngcono kakhulu, kwaye ayishiyi ngasemva inkangeleko emnandi. Ii-nanoparticles ezintle kakhulu zenza i-sunscreen ingabi mfiliba kodwa isebenze ngendlela efanayo.
Uninzi loPhando lufumanisa ukuba iiNanoparticles zikhuselekile kwi-Sunscreen
Ngokwento esiyaziyo ngoku, akubonakali ngathi ii-nanoparticles ze-zinc oxide okanye i-titanium dioxide ziyingozi nangayiphi na indlela. Nangona kunjalo, iziphumo zexesha elide zokusebenzisa i-zinc oxide ene-micronized kunye ne-titanium dioxide, ziyimfihlakalo kancinci. Ngamanye amazwi, akukho bungqina bokuba ukusetyenziswa ixesha elide kukhuselekile ngokupheleleyo, kodwa akukho bungqina bokuba kuyingozi.
Abanye baye babuza ukhuseleko lwala masuntswana aneemicron. Ngenxa yokuba mancinci kakhulu, anokufunxwa lusu aze angene emzimbeni. Ubungakanani bokufunxwa kunye nokuba angena nzulu kangakanani kuxhomekeke ekubeni mancinci kangakanani amasuntswana e-zinc oxide okanye e-titanium dioxide, kwaye athunyelwa njani.
Ngokuphathelele ukukhaba, kwenzeka ntoni emzimbeni wakho ukuba i-zinc oxide okanye i-titanium dioxide nano-particles ziyafunxwa? Ngelishwa, akukho mpendulo icacileyo yaloo nto, nokuba.
Kukho intelekelelo yokuba zinokuxinzelela kwaye zonakalise iiseli zomzimba wethu, zikhawulezise ukwaluphala ngaphakathi nangaphandle. Kodwa uphando oluthe kratya kufuneka lwenziwe ukuze kuziwe ngokuqinisekileyo ngandlela thile.
I-titanium dioxide, xa ikwimo yayo yomgubo kwaye iphefumliwe, ibonakalisiwe ukuba ibangela umhlaza wemiphunga kwiimpuku zelebhu. I-titanium dioxide ene-micronized ikwangena eluswini nzulu kakhulu kune-zinc oxide ene-micronized, kwaye i-titanium dioxide ibonakalisiwe ukuba idlula kwi-placenta ize ivale umqobo wegazi-ubuchopho.
Khumbula, nangona kunjalo, ukuba uninzi lolu lwazi luvela ekutyeni i-titanium dioxide (kuba ifumaneka ekutyeni okuninzi okupakishwe kwangaphambili kunye neelekese). Kwiiphando ezininzi ze-titanium dioxide efakwe kwi-micronized kunye ne-zinc oxide, ezi zithako zifumaneka eluswini ngamaxesha athile, kwaye nangona kunjalo zazikwizinga eliphantsi kakhulu.
Oko kuthetha ukuba nokuba ufaka i-sunscreen enee-nanoparticles, zisenokungafunxwa ngaphaya komaleko wokuqala wesikhumba. Ubungakanani obufunxwayo buyahluka kakhulu ngokuxhomekeke kwindlela eyenziwe ngayo i-sunscreen, kwaye uninzi lwayo aluyi kufunxwa nzulu ukuba lukhona.
Ngolwazi esinalo ngoku, izithambiso zelanga ezine-nanoparticles zibonakala zikhuselekile kwaye zisebenza kakuhle. Akucaci kakuhle ukuba ukusetyenziswa kwexesha elide kwale mveliso kunokuba naliphi na ifuthe kwimpilo yakho, ingakumbi ukuba usebenzisa le mveliso yonke imihla. Kwakhona, akukho bungqina bokuba ukusetyenziswa ixesha elide kwe-micronized zinc oxide okanye i-titanium dioxide kuyingozi, asazi ukuba inefuthe lini (ukuba likho) eluswini okanye emzimbeni wakho.
Ilizwi Elivela Kwi-Verywell
Okokuqala, khumbula ukuba ukunxiba i-sunscreen yonke imihla yenye yezona zinto zibalaseleyo onokuzenza kwimpilo yesikhumba sakho ixesha elide (kwaye yeyona ndlela ilungileyo yokulwa nokwaluphala). Ngoko ke, sibulela ngokusebenza nzima ekukhuseleni ulusu lwakho!
Kukho ii-sunscreen ezininzi zendalo ezikhoyo, zombini ii-nano kunye nee-non-nano ongakhetha kuzo, ngokuqinisekileyo kukho imveliso ekhoyo. Ukusebenzisa i-sunscreen ene-micronized (AKA nano-particle) zinc oxide okanye i-titanium dioxide kuya kukunika imveliso engenama-pasty kwaye ikhuhla ngokupheleleyo.
Ukuba ukhathazekile ngamasuntswana amancinci, ukusebenzisa i-sunscreen engenawo amasuntswana amaninzi kuya kukunika amasuntswana amakhulu angenakufunxwa lula lusu lwakho. Ingxaki kukuba uya kubona i-white film eluswini lwakho emva kokuyifaka.
Enye indlela ukuba ukhathazekile kukuphepha iimveliso ze-titanium dioxide ezenziwe nge-micronized, kuba esi sithako sesona sinxulunyaniswa neengxaki zempilo ezinokubakho. Kodwa ke, khumbula ukuba uninzi lwezi ngxaki zazibangelwa kukuphefumla okanye ukuginya i-titanium dioxide nanoparticles, kungekhona ukufunxwa lusu.
I-sunscreen yendalo, nokuba yeyohlobo lwe-micron okanye hayi, yahluka kakhulu ngokuqina kwayo kunye nokuvakala kwayo eluswini. Ngoko ke, ukuba olunye uphawu alukuthandi, zama olunye ude ufumane olukulungeleyo..
Ixesha lokuthumela: Julayi-12-2023