Tshuaj pleev ib ce yog ib yam khoom siv rau soothing thiab tiv thaiv daim tawv nqaij.
1. Kev npaj cov khoom siv raw: Sau thiab npaj cov ntaub ntawv raw uas yuav tsum tau ua, xws li cov tshuaj ntsuab tshwj xeeb, cov roj hauv paus, emulsifiers, thiab lwm yam. 2. Kev npaj sib xyaw: Sib tov cov tshuaj ntsuab tshwj xeeb, cov roj hauv paus, emulsifiers, thiab lwm yam ua ke raws li.. .