Xaiv raws li hom tawv nqaij: ntau hom essence yuav tsum tau siv rau ntau hom tawv nqaij. Piv txwv li, cov tawv nqaij qhuav yog haum rau kev siv cov essence uas muaj cov khoom xyaw moisturizing, thaum oily daim tawv nqaij yog haum rau kev siv cov roj tswj essence.
Xaiv raws li qhov xav tau: cov teeb meem ntawm daim tawv nqaij sib txawv xav tau cov kev daws teeb meem sib txawv. Piv txwv li, daim tawv nqaij uas xav tau kev tiv thaiv kev laus tuaj yeem xaiv cov essence uas muaj cov tshuaj tiv thaiv kev laus.
Ua tib zoo mloog rau cov khoom xyaw: Thaum xaiv cov ntsiab lus, ua tib zoo saib nws cov npe khoom, thiab xaiv cov khoom tsis muaj kev txhawb nqa thiab ntxiv. Nyob rau tib lub sijhawm, kev saib xyuas yuav tsum tau them rau cov ntaub ntawv xws li hnub tsim khoom thiab txee lub neej ntawm cov khoom.
Hom lub koob npe nrov: xaiv cov kua essence ntawm lub npe nrov siv cov khoom lag luam kom ntseeg siab.