I-Sunscreen ne-Sun Safety
Abazali abaningi bacabanga nge-SPF, noma i-Sun Protection Factor, njengendlela yokutshela ukuthi i-sunscreen inamandla kangakanani. Futhi kuyilapho lokho kuyiqiniso, njengoba i-suncreen 30 ye-SPF inikeza ukuvikeleka kwelanga ngaphezulu kune-sunset, i-SPF 15, kuningi kunalokho.
Okokuqala, i-SPF iyindlela kuphela yokusebenza kwelanga elibhekene nemisebe ye-UVB. Ngakho ingane yakho ingaba nokuvikelwa kwelanga embi, ngisho noma usebenzisa isikrini sekhanda eliphezulu le-SPF 100+ ngaphandle uma libala izithako zelanga ezivimbela imisebe ye-UVA.
Lawa ma-sunscreen avikela emiranjeni ye-UVA ne-UVB ivame ukubizwa ngokuthi i-sunshcreens ebanzi.
Kuyini i-SPF?
Enye into engafanele mayelana ne-SPF yukuthi ikutshela nje ukuthi ungahlala isikhathi esingakanani elangeni ngaphandle kokushisa ilanga.
Yilokho kuyiqiniso, kungakanani ukuvikela ilanga eliyisikrini - kungakhathaliseki ukuthi i-SPF - nayo ixhomeke ekutheni ilanga ngaleso sikhathi. Isibonelo, kungathatha ingane engamaminithi angu-30 ngaphandle kwesihenqo selanga ukuze uthole ukushisa kwelanga ekuseni, kodwa imizuzu engu-15 kuphela ntambama, lapho ukukhanya kwemisebe yelanga kuphakeme. Futhi ngisho nangesikhathi esifanayo sosuku, kuzothatha isikhathi esincane ukuthola ukushisa ilanga ngezinsuku lapho inkomba ye-UV isesimweni esiphakeme kuya phezulu, ngokuhambisana nezinsuku lapho iphansi.
Ngakho-ke ngenkathi i-sunshine ye-SPF 15 izovumela ingane yakho ukuba ihlale ilanga izikhathi ezingu-15 ubude ngaphandle kokushisa ilanga kunalokho angayenza ngaphandle kokuvikelwa kwelanga, kuye ngokuthi isikhathi sosuku ne-Index Index, okungase kusho amahora angu-4 noma amahora angu-8 ukuvikelwa kwelanga.
Ingabe i-sunscreen ye-SPF 50 ingavumela ingane yakho ukuba ihlale ilanga ngokuphindwe izikhathi ezingu-50, inikeze konke ukuvikelwa kosuku?
Ngeshwa, cha. I-sunscreens yanamuhla ayinikezi ukuvikelwa kwelanga lonke noma ukuvikelwa okungaphelela ngisho namahora ambalwa. Izici eziningi kakhulu zingathinta kanjani ukusebenza kahle kwelanga, kuhlanganise nokuthi:
- Ngisho nemiswakama ye-sunscreen engenamanzi kakhulu, engenawo amanzi, kanye ne-sweatproof izoqala ukugeza emva kwemizuzu engaba ngu-80 noma ngokushesha uma ingane yakho ibhukuda noma izithuthumela kakhulu
- Ezinye izithako ze-sunscreen ekugcineni ziqala ukuphazamiseka uma zivezwe elangeni
- I-sunscreen ingakuthola ukuxubha ngenkathi ingane yakho idlala
Futhi abazali abaningi basebenzisa cishe eyodwa-yesine kuya kwesigamu inani eliphakanyisiwe lokushisa kwelanga futhi ungalisebenzisi ngokuphindaphindiwe.
Okuningi mayelana ne-SPF
Ngokuvamile, i-sunscreen ene:
- I-SPF 2 ivimbela ama-ray angu-50% we-UVB
- I-SPF 4 ivimbela amaphesenti angama-75 e-UVB
- I-SPF 8 ivimbela ama-87% wezimpawu ze-UVB
- I-SPF 15 ivimba ama-ray angu-93% we-UVB
- I-SPF 30 ivimbela ama-97% we-ray UVB
- I-SPF 50 imabhuloki engu-98% yemisebe ye-UVB
- I-SPF 100 ivimbela amaphesenti angu-99 we-UVB
Ochwepheshe abaningi bayabuza ukuthi ukusebenzisa i-sunscreen ngaphezu kwe-SPF 30 kuyadingeka ngempela, noma kunjalo, njengoba usuvimbela kakade u-97% wama-ray UVB. Ukusebenzisa isikrini sekhanda eliphakeme le-SPF kungase kube umqondo omuhle futhi kunganikeza ukuvikeleka okwengeziwe kulabo abasebenzisa i-sunscreen ngokwanele futhi bangayifaki futhi.
Isibonelo, i-sunscreen ye-SPF 30 iyoba yi-SPF 5 yesikrini uma usebenza kuphela isigamu sesamba seminconywa, njengabazali abaningi. Uma i-suncreen ephezulu ye-SPF 100 iyancipha ngesilinganiso esifanayo, khona-ke sinethemba ukuthi usesezingeni le-SPF 15 kuya ku-SPF 30.
Ukukhulisa ukuvikelwa kwe-SPF
Ukuze uthole ukuvikeleka kwelanga elihle ezinganeni zabo, ngaphezu kokunciphisa noma ukunciphisa ukukhanya kwelanga lapho ama-UV enamandla kakhulu (ngokuvamile kusukela ngo-10 ekuseni ukuya ku-4: 00 ntambama), abazali kufanele bakhethe isikrini somshini obanzi obukhulu nge-SPF encane engama-15 kuya ku- 30 futhi kufanele basebenze ukukhulisa ukuvikelwa kwe-SPF yalesi sikrini selanga ngokuthi:
- Ukusebenzisa i-sunscreen okungenani imizuzu engu-15 kuya kwezingama-30 ngaphambi kokuba izingane zivezwe elangeni, hhayi ukulinda kuze kube yilapho sezivele zingaphandle
- Ukusebenzisa isikrini somswakama esanele, esingalingana no-ounce ngesikhathi somuntu osemusha osemusha
- Ukusebenzisa umshini wokukhanya kwelanga ongenamanzi okungenani imizuzu engu-15 kuya kwezingama-30 ngaphambi kokuba ingane ibhukuda noma izokwehliswa emanzini, ngakho-ke kuncane amathuba okugezwa kalula
- Ukusebenzisa i-sunscreen ngokulinganayo kuzo zonke izingxenye zomzimba eziveziwe, ikakhulukazi lezozindawo ezivame ukunganaki, kuhlanganise nekhala lomntwana, phezulu kwezinyawo zakhe, nangemuva kwentamo yakhe
- Ukusebenzisa i-sunscreen okungenani njalo emahoreni amabili, futhi ikakhulukazi ngemuva kokubhukuda komntwana noma ukudlala ngamandla nangokuzikhukhumeza
- Ukuqinisekisa ukuthi i-sunscreen ayikapheli isikhathi eside, kucatshangwa ukuthi umshini wokushisa ilanga ngaphandle kosuku lokuphelelwa yisikhathi kucatshangwa ukuthi ulahlekelwe ukusebenza kwawo emva konyaka noma ngokushesha uma ubhekene namazinga aphezulu okushisa, njengebhokisi legesi lemoto
- Ukungasebenzisi kokubili isikrini selanga kanye nesilawuli sezinambuzane ngesikhathi esifanayo, noma umkhiqizo ohlanganisa i-sunscreen kanye nezinambuzane ezinambuzane, njenge-DEET (isithako esivamile se-spray) anganciphisa i-SPF yesikrini selanga
- Ukusebenzisa i-sunscreen ephakeme ye-SPF uma kudingeka futhi usebenzise isilawuli sezinambuzane, kodwa sebenzisa kuqala isikrini sakho selanga futhi uqiniseke ukuthi usebenzise kabusha isikrini selanga njalo ngamahora ambalwa
Uma ngabe ingane yakho isencibilikisiwe noma ifakwe ilanga, naphezu kokusetshenziswa kwe-sunscreen, qiniseka ukuyisebenzisa ngokushesha, ngaphambi kokuba ingane yakho iphume ngaphandle, faka okuningi kakhulu (cabanga ukusebenzisa izikhathi ezingu-2 ngaphezulu kwelanga), uyisebenzise ngokuphindaphindiwe, futhi ucabange ukusebenzisa i-sunrise yokukhanya ye-SPF ephezulu (SPF 100+) engamelana namanzi futhi unikeza ukuvikelwa kwe-UVVA ne-UVB ebanzi.
Imithombo
Auerbach: Wilderness Imithi, 5th ed.
I-CDC. Ukuvimbela I-Skin Cancer April 2010.
I-FDA. I-Sunburn Protection Factor (i-SPF). April 2009.
Kim SM. Ubuhlobo phakathi kwesisindo somshini wokushisa kwelanga nokusebenza kwelanga esikhunjeni sase-Asia. J Am Acad Dermatol - 01-FEB-2010; 62 (2): 218-22.