The invention discloses a preparation method of 
coix seed whitening facial 
cleanser, which is carried out according to the following steps: add 
barley extract, 
witch hazel extract, 
purslane extract and 
calamus root extract into a reaction kettle containing 
distilled water according to the proportion,  Heat to 56-70°C until the ingredients are completely melted; then add glycerin, 
avocado oil extract, and 
coconut oil, stir to mix evenly, homogenize for 10 minutes, and control the speed at 2780-2880 rpm; cool down to 45-  Add 
pyridoxine hydrochloride and 
decyl glucoside at 53°C and stir evenly, then continue to cool down; cool down to 40‑42°C, add 
fatty alcohol, 
sodium lauryl sarcosinate and continue stirring until completely dissolved and emulsified to viscous; cool down to 
room temperature  , aged for 12 hours, and can be filled into finished products after passing the inspection.  The facial 
cleanser prepared by the method of the invention efficiently cleans the 
dirt in the 
skin, is easy to rinse without tightness, is safe and has no burden, has a comfortable touch, balances water and oil, locks 
moisture, and is free of fragrance, 
mineral oil and preservatives.