Usunqume ukuthi ukusebenzisa isithako selanga semvelo kuyindlela efanele kuwe. Mhlawumbe unomuzwa wokuthi kuyindlela enempilo kuwe nasendaweni ezungezile, noma isithako selanga esinezithako ezisebenzayo zokwenziwa sicasula isikhumba sakho esizwela kakhulu.
Bese uzwa "ngama-nanoparticles" kwezinye izithasiselo zemvelo zokuvikela ilanga, kanye nolwazi olwesabekayo noluphikisanayo mayelana nalezi zinhlayiya ezikunika ikhefu. Empeleni, ingabe ukukhetha isithasiselo zemvelo sokuvikela ilanga kufanele kube yinto edidayo kangaka?
Njengoba kunolwazi oluningi kangaka, kungabonakala kungaphezu kwamandla. Ngakho-ke, ake sinciphise umsindo sibheke ngokungachemi ama-nanoparticles ku-sunscreen, ukuphepha kwawo, izizathu zokuthi kungani uzowafuna ku-sunscreen yakho nokuthi nini lapho ungeke uwafune khona.
Ziyini izinhlayiya ezincane?
Ama-nanoparticle ayizinhlayiya ezincane kakhulu zento ethile. Ama-nanoparticle angaphansi kwama-nanometer ayi-100 ubukhulu. Ukuze sinikeze umbono othile, i-nanometer incane ngokuphindwe kayi-1000 kunobukhulu bomucu owodwa wezinwele.
Nakuba ama-nanoparticles angadalwa ngokwemvelo, njengamaconsi amancane e-sea spray isibonelo, ama-nanoparticles amaningi adalwe elebhu. Kwi-sunscreen, ama-nanoparticles okukhulunywa ngawo yi-zinc oxide kanye ne-titanium dioxide. Lezi zithako zihlukaniswa zibe izinhlayiya ezincane kakhulu ngaphambi kokuba zengezwe ku-sunscreen yakho.
Ama-nanoparticles aqala ukutholakala kuma-sunscreen ngawo-1980, kodwa awazange atholakale kwaze kwaba ngawo-1990. Namuhla, ungacabanga ukuthi i-sunscreen yakho yemvelo ene-zinc oxide kanye/noma i-titanium dioxide iyizinhlayiya ezincane ngaphandle kokuthi kuchazwe ngenye indlela.
Amagama athi “nano” kanye “ne-micronized” asho okufanayo. Ngakho-ke, i-sunscreen enelebula elithi “micronized zinc oxide” noma “micronized titanium dioxide” iqukethe ama-nanoparticles.
Ama-nanoparticles awatholakali kuphela kuma-sunscreen. Imikhiqizo eminingi yokunakekelwa kwesikhumba kanye nezimonyo, njengezisekelo, ama-shampoo, kanye namazinyo okuxubha, ivame ukuqukethe izithako ezifakwe ama-micron. Ama-nanoparticles asetshenziswa nasezintweni zikagesi, ezindwangu, engilazini engaklwebheki, nokuningi.
Ama-Nanoparticles Avikela Izikrini Zelanga Zemvelo Ekushiyeni Ifilimu Emhlophe Esikhumbeni Sakho
Uma ukhetha i-sunscreen yakho yemvelo, unezinketho ezimbili; lezo ezinezinhlayiya ezincane kanye nalezo ezingenazo. Umehluko phakathi kwalezi ezimbili uzobonakala esikhumbeni sakho.
Kokubili i-titanium dioxide kanye ne-zinc oxide kuvunyelwe yi-FDA njengezithako zemvelo zokuvikela ilanga. Ngayinye inikeza ukuvikelwa kwe-UV okubanzi, yize i-titanium dioxide isebenza kahle kakhulu uma ihlanganiswa ne-zinc oxide noma esinye isithako sokuvikela ilanga esenziwe ngokwenziwa.
I-zinc oxide kanye ne-titanium dioxide zisebenza ngokukhipha imisebe ye-UV kude nesikhumba, zivikela isikhumba elangeni. Futhi zisebenza kahle kakhulu.
Ngendlela yazo evamile, engalingani ne-nano, i-zinc oxide kanye ne-titanium dioxide zimhlophe impela. Uma zifakwa ku-sunscreen, zizoshiya ifilimu emhlophe esobala engabonakali esikhumbeni. Cabanga ngomlindi wokuphila ojwayelekile omhlophe ngaphesheya kwebhuloho lekhala—yebo, yi-zinc oxide leyo.
Faka ama-nanoparticles. I-sunscreen eyenziwe nge-micronized zinc oxide kanye ne-titanium dioxide ihlikihla esikhumbeni kangcono kakhulu, futhi ngeke ishiye ukubukeka okufana ne-pasty. Ama-nanoparticles amahle kakhulu enza i-sunscreen ingacaci kodwa isebenze kahle ngendlela efanayo.
Iningi Locwaningo Lithola Ama-Nanoparticles Aphephile Esikrinini Selanga
Kusukela kulokho esikwaziyo manje, akubonakali sengathi ama-nanoparticles e-zinc oxide noma i-titanium dioxide ayingozi nganoma iyiphi indlela. Kodwa-ke, imiphumela yesikhathi eside yokusebenzisa i-zinc oxide ene-micronized kanye ne-titanium dioxide, iyimfihlakalo kancane. Ngamanye amazwi, abukho ubufakazi bokuthi ukusetshenziswa kwesikhathi eside kuphephile ngokuphelele, kodwa abukho ubufakazi bokuthi kuyingozi futhi.
Abanye baye bangabaza ukuphepha kwalezi zinhlayiya ezincane kakhulu. Ngenxa yokuthi zincane kakhulu, zingamuncwa yisikhumba futhi zingene emzimbeni. Ukuthi zimuncwa kangakanani nokuthi zingena ngokujule kangakanani kuncike ekutheni zincane kangakanani izinhlayiya ze-zinc oxide noma ze-titanium dioxide, nokuthi zilethwa kanjani.
Ngokuphathelene nokukhahlela, kwenzekani emzimbeni wakho uma izinhlayiya ezincane ze-zinc oxide noma ze-titanium dioxide zimuncwa? Ngeshwa, ayikho impendulo ecacile yalokho, futhi.
Kukhona ukuqagela ukuthi zingase zicindezele futhi zilimaze amangqamuzana emizimba yethu, zisheshise ukuguga ngaphakathi nangaphandle. Kodwa kudingeka kwenziwe ucwaningo olwengeziwe ukuze kwaziwe ngokuqinisekile ngandlela thile.
I-titanium dioxide, uma isesimweni sayo sempuphu futhi iphefumulelwe, iboniswe ukuthi ibangela umdlavuza wamaphaphu kumagundane ase-lab. I-titanium dioxide ene-micronized ingena esikhumbeni ngokujulile kakhulu kune-zinc oxide ene-micronized, kanti i-titanium dioxide iboniswe ukuthi idlula ku-placenta futhi ivale umgoqo wegazi nobuchopho.
Nokho, khumbula ukuthi ulwazi oluningi luvela ekudleni i-titanium dioxide (njengoba itholakala ekudleni okuningi okupakishwe kusengaphambili kanye namaswidi). Kusukela ezifundweni eziningi ze-titanium dioxide efakwe ngaphakathi kanye ne-zinc oxide, lezi zithako zitholakala esikhumbeni ngezikhathi ezithile, futhi ngisho nangaleso sikhathi zazisezingeni eliphansi kakhulu.
Lokho kusho ukuthi noma ufaka isithako sokuvikela ilanga esiqukethe ama-nanoparticles, kungenzeka singamunci ngisho nangaphezu kwengqimba yokuqala yesikhumba. Inani elimuncwayo liyahlukahluka kakhulu kuye ngokuthi umuthi wokuvikela ilanga ukhiqizwa kanjani, futhi okuningi kwalo ngeke kumunce ngokujulile uma kunjalo.
Ngolwazi esinalo njengamanje, i-sunscreen equkethe ama-nanoparticles ibonakala iphephile futhi isebenza kahle kakhulu. Akucaci kahle ukuthi ukusetshenziswa kwesikhathi eside komkhiqizo kungaba namuphi umphumela empilweni yakho, ikakhulukazi uma usebenzisa umkhiqizo nsuku zonke. Futhi, abukho ubufakazi bokuthi ukusetshenziswa isikhathi eside kwe-zinc oxide noma i-titanium dioxide kuyingozi, asazi ukuthi kunamuphi umphumela (uma ukhona) esikhumbeni noma emzimbeni wakho.
Izwi Elivela Ku-Verywell
Okokuqala, khumbula ukuthi ukugqoka isithako sokuvikela ilanga nsuku zonke kungenye yezinto ezinhle kakhulu ongazenzela impilo yesikhumba sakho yesikhathi eside (futhi kuyindlela engcono kakhulu yokulwa nokuguga). Ngakho-ke, siyabonga ngokuthatha isinyathelo sokuvikela isikhumba sakho!
Kunezinhlobo eziningi zemithi yokuvikela ilanga yemvelo etholakalayo, kokubili izinketho ze-nano kanye ne-non-nano, kukhona umkhiqizo otholakalayo. Ukusebenzisa imithi yokuvikela ilanga ene-micronized (AKA nano-particle) zinc oxide noma i-titanium dioxide kuzokunikeza umkhiqizo ongenaso i-pasty futhi ogcotshwa ngokugcwele.
Uma ukhathazekile ngezinhlayiya ezincane, ukusebenzisa isithako sokuvikela ilanga esingenawo ama-micron kuzokunikeza izinhlayiya ezinkulu ezingeke zimuncwe yisikhumba sakho. Okubalulekile ukuthi uzobona ifilimu emhlophe esikhumbeni sakho ngemva kokufaka.
Enye indlela uma ukhathazekile ukugwema ngokuphelele imikhiqizo ye-titanium dioxide eyenziwe nge-micronized, ngoba lesi sithako yisona esiye sahlotshaniswa nezinkinga zempilo ezingaba khona. Nokho, khumbula ukuthi iningi lalezi zinkinga lalibangelwa ukuphefumula noma ukungenisa ama-nanoparticles e-titanium dioxide, hhayi ukumuncwa kwesikhumba.
I-sunscreen yemvelo, kokubili ene-micronized kanye ne-non-micronized, iyahlukahluka kakhulu ngokufana kwayo kanye nomuzwa wayo esikhumbeni. Ngakho-ke, uma uhlobo olulodwa lungaluthandi, zama olunye uze uthole olukusebenzelayo..
Isikhathi sokuthunyelwe: Julayi-12-2023