Double Whitening Facial Mask that maximizes whitening effect by mixing sheet that contains Vitamin C and Hylaruronic acid and Whitegen contents. Product Benefits • Double Whitening Facial Mask that maximizes whitening effect by mixing sheet that contains Vitamin C and Hylaruronic acid and Whitegen contents. How to use ① After washing face and arrange skin with toner, take out the tray in 2STEP ② Separate 1STEP ampoule according to the line and open the package. Open the lid and then pour the contents after. ③ Press the tray lid to make ampoule evenly get absorbed to sheet. ④ Take out the sheet that absorbed the ampoule, and apply it to face. ⑤ Take off the mask after 10~20 min, and pat the rest of ampoule on face for absorption.