-Wafood FACE MASK contains Japanese Sake lees extract to make your skin firm and hydrated.
-Sake lees (or Sake kasu in Japanese) is the remaining yeast from sake fermentation.
-Sake lees is used in Japanese food and cosmetics. Probably, you have tried it drinking amazake (the traditional sweet Japanese drink made from fermented rice) or in pickles.
-As commented, sake lees is also used in beauty since it is very beneficial for the skin. If you are interested in Sake lees cosmetics or beauty components, this is an easy way to try it out.

DIRECTIONS OF USE:
After you wash your face, apply the mask on your face. 
Let it stay for 5 - 10 minutes and take it off.