I-sunscreen isebenza kanjani ngempela?

Wonke umuntu uyazi ukuthi ukusebenzisa i-sunscreen nsuku zonke kuyindlela enhle yokuvikela isikhumba sakho emisebeni ye-UV eyingozi. Sifaka ngenkuthalo i-SPF ye-spectrum ebanzi njalo ekuseni—futhi siphinde sifake isicelo njalo ngemva kwamahora amabili usuku lonke—ukuze sigweme ukushiswa yilanga. Lo mkhuba ungasiza ekunciphiseni amathuba okuba nezimpawu ezibonakalayo zokuguga kwesikhumba. Kodwa phakathi kwalokho kusetshenziswa kwansuku zonke, ingabe wake wazibuza ukuthi i-sunscreen isivikela kanjani isikhumba sakho? Phela, i-sunscreen iyingxenye ebalulekile yanoma iyiphi inqubo yokunakekelwa kwesikhumba. Kufanele okungenani sazi ukuthi umkhiqizo usebenza kanjani, akunjalo? Ukuze wenze lokho, sinikeza izimpendulo zeminye imibuzo yakho evuthayo mayelana nokuvikela ilanga!

ISEBENZA KANJANI I-SUN CREAM?

Ngokungamangalisi, impendulo ihlobene kakhulu nokwakheka kwalokhu kudla. Kalula nje, i-sunscreen isebenza ngokuhlanganisa izithako ezisebenzayo nezingaphili eziklanyelwe ukuvikela isikhumba sakho. Izikhilimu zelanga ezingokoqobo ngokuvamile zenziwe ngezithako ezisebenzayo ezingaphili, njenge-zinc oxide noma i-titanium oxide, ezihlala phezu kwesikhumba sakho futhi zisize zibonise noma zisakaze imisebe. Amakhilimu okuvikela ilanga ngokuvamile akhiwa izithako ezisebenzayo ezifana ne-octocrylene noma i-avobenzone ezisiza ukumunca imisebe ye-UV ngaphezulu kwesikhumba, ziguqule imisebe ye-UV emuncwe ibe ukushisa, bese ikhulula ukushisa esikhumbeni. Kukhona namanye ama-sunscreens ahlukaniswa njengama-sunscreens angokwenyama namakhemikhali ngokusekelwe ekubunjweni kwawo. Lapho ukhetha okokuvikela ilanga, bheka ifomula engangeni manzi futhi enikeza ukuvikeleka kwe-spectrum ebanzi, okusho ukuthi ivikela emisebeni yomibili i-UVA ne-UVB.

Ukuze ufunde kabanzi mayelana nomehluko phakathi kwezikhilimu zelanga ezingokwenyama namakhemikhali, funda lokhu!

YIKUPHI UMEHLUKO PHAKATHI KWEMISEBENZI YE-UVA NE-UVB?

Njengamanje, cishe uyazi ukuthi yomibili imisebe ye-UVA ne-UVB iyingozi. Umehluko oyinhloko phakathi kwakho kokubili ukuthi imisebe ye-UVA, engamuncwe ngokugcwele i-ozone, ivame ukungena ijule esikhunjeni kunemisebe ye-UVB futhi ingaguga ngaphambi kwesikhathi ukubukeka kwesikhumba sakho, okunomthelela ekushwabaneni okuphawulekayo namachashaza obudala. Imisebe ye-UVB, evinjwe ngokwengxenye ungqimba lwe-ozone, ibangela ngokuyinhloko ukubambezeleka kokushiswa yilanga nokusha.

Ubuwazi ukuthi kunohlobo lwesithathu lwemisebe ebizwa ngokuthi imisebe ye-UV? Njengoba imisebe ye-UV ihlungwa ngokuphelele umkhathi futhi ingafinyeleli ebusweni bomhlaba, ngokuvamile ayixoxwa kakhulu.

IYINI i-SPF?

I-SPF, noma isici sokuvikela ilanga, isilinganiso sekhono le-sunscreen lokuvimbela imisebe ye-UVB ukuba ingalimazi isikhumba. Isibonelo, uma isikhumba esingavikelekile siqala ukuba bomvu ngemva kwemizuzu engu-20, ukusebenzisa i-sunscreen SPF 15 kufanele kuvimbele ukubomvu ngokuphindwe izikhathi ezingu-15 kunesikhumba esingavikelekile, okungukuthi cishe amahora amahlanu. Nokho, kubalulekile ukuqaphela ukuthi i-SPF ikala kuphela imisebe ye-UVB, eshisa isikhumba, hhayi imisebe ye-UVA, nayo eyingozi. Ukuze uvikele kukho kokubili, sebenzisa isikrini selanga esibanzi futhi uthathe ezinye izinyathelo zokuvikela ilanga.

Inothi lomhleli: Asikho i-sunscreen esingavimba ngokuphelele yonke imisebe ye-UV. Ngokungeziwe ekhiqizweni elangeni, qiniseka ukuthi ulandela ezinye izinyathelo zokuphepha njengokugqoka izingubo ezivikelayo, ukufuna umthunzi, nokugwema amahora aphakeme kakhulu okukhanya kwelanga.

INGABE ILANGA liyaphuma?

Ngokusho kweMayo Clinic, ama-sunscreens amaningi aklanyelwe ukugcina amandla awo okuqala kuze kube iminyaka emithathu. Uma i-sunscreen yakho ingenayo idethi yokuphelelwa yisikhathi, kuwumqondo omuhle ukubhala usuku lokuthenga ebhodleleni bese ulilahla ngemva kweminyaka emithathu. Lo mthetho kufanele ulandelwe ngaso sonke isikhathi, ngaphandle uma i-sunscreen igcinwe ngokungalungile, okunganciphisa isikhathi seshelufu sefomula. Uma kunjalo, kufanele ilahlwe futhi esikhundleni somkhiqizo omusha ngokushesha. Naka noma yiziphi izinguquko ezisobala embaleni noma ukungaguquguquki kwe-sunscreen. Uma okuthile kubonakala kusolisa, kulahle ukuze uvune enye.

Inothi lomhleli: Skena amaphakheji akho esikrini selanga ukuze uthole amadethi okuphelelwa yisikhathi, njengoba iningi kufanele liwafake. Uma uyibona, sebenzisa usuku lokuphelelwa yisikhathi ebhodleleni/eshubhuni njengesiqondiso sokuthi ifomula ingasetshenziswa isikhathi esingakanani ngaphambi kokuba ime ukusebenza.

INDLELA ENGINGAYISEBENZISA I-SUN CREAM?

Uma ibhodlela lokuvikela ilanga likuthatha iminyaka, kungenzeka ukuthi awulisebenzisi inani elinconyiwe. Ngokuvamile, ukufakwa kahle kwe-sunscreen cishe kungama-ounce eyodwa—enele ukugcwalisa ingilazi yokudubula—ukumboza izingxenye zomzimba eziveziwe. Kuye ngosayizi womzimba wakho, leli nani lingashintshashintsha. Qiniseka ukuthi usebenzisa kabusha inani elifanayo le-sunscreen okungenani njalo ngamahora amabili. Uma uzobhukuda, juluka kakhulu noma wome ithawula, phinda ufake isicelo ngokushesha.

INGABE IKHONA INDLELA EPHEPHILE YOKWENZA I-TANN?

Naphezu kwalokho okungenzeka ukuzwile, ayikho indlela ephephile yokushiswa yilanga. Ngaso sonke isikhathi lapho uchayeka emisebeni ye-UV - evela elangeni noma ngemithombo yokwenziwa efana nemibhede yokushuka nezibani zelanga - ulimaza isikhumba sakho. Kungase kubonakale kungenangozi ekuqaleni, kodwa njengoba lo monakalo ukhula, ungabangela ukuguga kwesikhumba ngaphambi kwesikhathi futhi wandise ingozi yokulimala kwesikhumba.