Ukunciphisa umngcipheko wokushisa ilanga kunye nomhlaza wesikhumba
Ukuba uke wabuyela kwisikrini se-sunscreen kwisikhululo sakho sezilwanyana, uyazi ukuba kunzima kangakanani. Iibhotile kunye neembhobho zizele zonke izifinyezo, ezifana neSSPF, UVA, kunye ne-UVB. Kwaye ezinye iinketho ezinjengokungena kwamanzi kunye nokuxhatshaza kwamanzi kudibanisa kuphela ukudideka. Kwakhona, ungalibali uluhlu olubanzi lweempawu omele ukhethe kuzo.
Kodwa, ukuba utyhafile kwaye unganaki ukuthatha amanyathelo okukhusela ukukhusela isikhumba sakho, mhlawumbi uzakufumana ukushisa kwelanga (okanye ngakumbi) kwaye awukwazi ukuzonwabisa ngexesha lakho elangeni.
Ngoko, makhe sijonge ngakumbi kwihlabathi lokuphepha kwelanga, ngoko unokulungiswa kakuhle.
Isikhuselo selanga
I-SPF ibonisa ukukhuselwa kwelanga. Ikwaxelela ukuba ungahlala ixesha elingakanani elangeni ngaphandle kokutshiswa ngelixa ubethe isiqabiso selanga ngokubhekiselele kwithuba elingakanani oya kukwazi ukuhlala elangeni ngaphambi kokutshiswa ngaphandle kokugqoka i-suncreen. Ngamanye amazwi, kuthetha ukuthatha imizuzu eyi-15 ukutshisa ngaphandle kokugqoka i-sunscreen. Ukusebenzisa i-SPF 10 kuthetha ukuba kuya kuthatha amaxesha angama-10 ukutshisa, okanye iiyure ezingama-2.5.
I-American Academy yeDermatology incoma ukugqoka i-SPF 30 ukukhusela okuphezulu. Kodwa, usenokuba uzicingela kuwe, " Kodwa kukho i-sunscreens ene-SPF 70. Ngaba akunjalo ukukhuselwa okuphezulu? " Akunjalo.
I-SPF ephezulu ayithethi ukukhusela okungcono. I-SPF 50 kuphela inika u-1 ukuya kwi-2 ekhulwini ukukhuselwa ngaphezu kwe-SPF 30. I-sunscreen ene-SPF ephezulu iyakwazi ukukhusela isikhumba sakho ixesha elide, kodwa cinga ngeemeko eziqhelekileyo apho sigqoke isikrini. ukubhukuda, ukujuluka, kunye nokukhwabanisa.
Akukho sikrini selanga, nokuba i-SPF 15 okanye i-60, inokumelana naloo nto. Nayiphi na isikrini, kungakhathaliseki ukuba yi-SPF, kufuneka isetyenziswe rhoqo, ngakumbi emva kokubhukuda, ukujuluka, nokumisa.
Index UV
Inkcazo ye-UV (ultraviolet) yindlela yokuqaphelisa imihla ngemihla ye- ray emisebe ye- UV emini xa imisebe yelanga iphezulu.
Inkcazo ye-UV ilinganiswa kwinqanaba elilodwa ukuya kwi-11+, enye ibonisa ingozi ephantsi kakhulu ye-UV exposure kunye ne-11+ ebonisa ingozi ephezulu ye-UV exposure.
Kukho imiba emininzi ecacisa inkcazo ye-UV, kuquka ixesha, ububanzi, nokuphakama. Inkcazo ye-UV iyona ephakamileyo entwasahlobo nasehlobo. Imisebe ye-UV iyona ephakamileyo kwi-equator, ngoko kukusondeza kuyo, ngakumbi umbane. Umoya uphinde ube mncinci kwiindawo eziphakamileyo, obangela ukukhanya kwe-UV ukuqinisa ngamandla.
UVA vs. UVB Protection
I-ray ye-UVA yinto enoxanduva lokuguga kwelanga kwesikhumba ngelixa i-UVB imisebe ixanduva lokushisa ilanga kunye nomhlaza wesikhumba. Nangona kunjalo, kubalulekile ukuba uqaphele ukuba ukunyamezela kwiimvula ze-UVA kungakhokelela kumdlavuza wesikhumba .
Ilebula kwesikrini se-sun iya kubonisa ukuba inikezela i-UVA okanye UVB ukukhusela. Ukuze unqande umdlavuza wesikhumba kunye nokuguga kwesikhumba sokuqala, i-sunscreen kufuneka ikhusele emibini yemibala ye-UVA kunye ne-UVB, nge-SPF engama-15. Ngaphandle koko, i-sunscreen ikhusela kuphela ukushisa kwelanga kwaye ingabi nomhlaza wesikhumba.
Kwakhona qaphela ukuba i-SPF kuphela inyathelo lokukhusela i-UVB, ngoko ukhethe umkhiqizo othi "UVA / UVB" ukhuseleko okanye unomkhuseli okhuselekileyo.
Ukukhuseleka kwamanzi ngokuMelana noManzi
Inqanaba le-SPF lonakaliswe xa isikhumba sakho sidibana namanzi.
Oku kuthetha ukuba kufuneka uphinde usebenzise i-sunscreen ngokukhawuleza nje xa uphume emanzini okanye ukuba uthatha inxaxheba kulo msebenzi ophosayo.
Ukuba ukhangele i-sunscreen ukuze usebenzise ngexesha elingaphantsi kwamanzi, khetha i-sunscreen "engenawo amanzi" okanye "ongenamanzi." Ama-sunscreens angenawo amanzi aphelelanga ngokupheleleyo kodwa angakhuseli emanzini imizuzu engama-80. Ama-sunscreens anqandekanga ngamanzi anika imizuzu engama-40 yokukhusela.
ILizwi
Ekubeni iibango ze-SPF zilawulwa ngokuthe ngqo kwi-FDA, i-SPF yokubhaliweyo ihambelana nenkampani kunye nenkampani, ngoko ukutshintsha phakathi kweempawu akuyona ingxaki.
I-sunscreen yokunene kuwe yinto enokuthi unxibe. Ngoko, qiniseka ukuba ufumene lowo uthanda ukuziva, ukuvumba, nokuthungwa kwexesha ngexesha elilinganayo ne-SPF level efunekayo ngetoni yakho yesikhumba.
Kwakhona, khumbula ukugcina ezi ngcebiso zokuphepha kwelanga engqondweni:
- Ukusebenzisa ngokupheleleyo isikrini selanga kuwo wonke umzimba wakho kwaye uyifake kwakhona kwakhona.
- Iingubo ezinqabileyo, ezifudumeleyo zivumela ukuba umbane omkhulu we-UV uphumelele.
- I-sunscreen ifanele isetyenziswe kuwo wonke umzimba, nakwiindawo ezinxibe ngeengubo.
- Ukugqoka iingubo ze-UPF kubulumko , kodwa akusoloko kuyona ndlela inokukhetha.
- Gqoka isitya esikhulu.
- Ukumboza isikhumba esikhatywayo.
- Hlalani emthunzini kangangoko kunokwenzeka.
- Ukuba uthabatha uhambo, kubalulekile ukwazi ukuba i- UV index iphakamileyo kakhulu kwi-equator kwaye xa ijikelezwe ngamanzi abonakalisa ilanga. I-sunscreen engenamanzi kunye ne-SPF 30 kunye nokukhuselwa kwebala lokubanzi kukubheja phambili.
> Umthombo:
> Ulawulo lweZiko lokuTya kunye neDrug. Isiko soKhuseleko lokutya kunye ne-Applied Nutrition Office ye-Cosmetics ne-Colors Fact Sheet.