DHHB yog tshuaj pleev thaiv hnub qub nrog rau kev pheej hmoo ntawm 2. Nws lub luag haujlwm tseem ceeb hauv cov tshuaj pleev ib ce thiab cov khoom siv txhua hnub yog hnub tiv thaiv hnub. Thaum siv nrog UVB cov tshuaj pleev duab, nws tuaj yeem nce tus nqi SPF ntawm cov khoom thiab kev pab tiv thaiv UVB.
Lub thawv: Raws li cov neeg siv khoom thov
Chaw ntim khoom: Khw muag khoom txias thiab qhuav
Cov Qauv Txheej Txheem: Tus qauv thoob ntiaj teb.