Yini esesikrinini seScreen sakho se-SPF?

Izithako Ezifanele Zingavikela Ingane Yakho Ezingxenyeni Ezingozi Zelanga

Ukuze uthole ukuvikelwa kwelanga okuphumelelayo, izingane zidinga ukusebenzisa isihenqo selanga noma ukushisa kwelanga nge-right factor protection factor (SPF) evimba imigqa emibili ye-UVA nemisebe ye-UVB.

Lokhu kusho ukuthi kufanele usebenzise i-sunscreen ebanzi ngokubanzi okungenani okungenani kwe-SPF 15 noma i-SPF 30.

Izithako ZeSiskrini Zesivikelo Kokubili UVA ne-UVB

Izithako ze-sunscreen zemisakazo yelanga yama-wide spectrum ehlinzeka ukuvikelwa emisebeni yomabili ye-UV kanye nemisebe ye-UVB ivame ukufaka eyodwa noma ngaphezulu yalezi zithako:

Ezinye izithako ze-sunscreen kuphela zihlinzeka ngokuvikelwa emisebeni ye-UV noma i-UVB imisebe, yingakho eziningi ze- sunscreen zihlanganisa izithako eziningi-ukuthi zinganikeza ngempela ukuvikelwa kwe-spectrum evulekile.

I-Coppertone Water Makeup I-Sunscreen Lotion SPF 50, isibonelo, libala izithako ezinhlanu ezisebenzayo, kuhlanganise ne-Avobenzone (UVA kuphela), i-Homosalate (UVB kuphela), i-Octisalate (UVB kuphela), i-octoblelene (UVB kuphela), ne-Oxybenzone (UVA ne-UVB).

Ukubambisana Ne-UVA

Isikrini selanga esivimbela imisebe ye-UVA kufanele sibe neyodwa noma ngaphezulu yalezi zithako (izithako ngesibindi zihlinzeka ngokuvikelwa okungaphezulu okungaphelele noma okulinganiselwe kwe-UVB):

Kulezi, i-Avobenzone, i-Mexoryl SX, ne-Zinc Oxide inikeza ukuvikelwa okubanzi kakhulu kwe-UVA futhi okungenani umuntu kufanele abe esitokisini esihle somshini ohlangene.

Ukuvikelwa kwe-UVB

Isikrini selanga esivimbela imisebe ye-UVB kufanele sibe neyodwa noma ngaphezulu yalezi zithako (izithako ngesibindi zinikeza ukuvikelwa okungeziwe okulinganiselwe noma okulinganiselwe kwe-UVA):

Lezi zithako zelanga zelanga zihlinzeka ngokuvikelwa okukhulu kwe-UVB.

Okudingeka Ukwazi

Ezinye izinto eziwusizo zokwazi mayelana nezithako ze-sunscreen zihlanganisa ukuthi:

Imithombo:

Auerbach: Wilderness Imithi, 5th ed.

Ramirez R. Isiqondiso esiwusizo sokuvikelwa kwelanga. Clin Clinic North Am - 01-FEB-2003; 83 (1): 97-107.

I-US EPA. I-Sun. Amaqiniso Okushisa. September 2006.

US FDA. Ukuvikelwa kwelanga.