Adopt the Korean "glass skin" routine with this 2-step mask. Start by applying the *Riddle Shot 100* (ampoule) on clean, dry skin to boost hydration and soothe with Cica, massaging until absorbed. Then, apply the hydrogel mask, fitting it well to the contours of your face, leave on for 15–20 minutes, then remove and pat in the remaining essence without rinsing. Use 1 to 2 times a week, especially on evenings when your skin feels stressed or dehydrated.