Pond's Firming Serum Face Sheet Mask boosts skin's natural plumping power leaving it soft & supple. Pond's Firming Serum Face Sheet Mask is made in Korea with skin-loving ingredients like Collagen, Hyaluronic Acid & Brown Algae Extract 1 sheet of Pond's Firming Serum Face Sheet Mask = 30x serum intensity. This miracle serum mask boosts your skin's natural plumping power and makes it firm in just 15 minutes! Pond's Firming Serum Face Mask is easy to use Remove the mask from the sachet & gently unfold. Place the mask evenly over your cleansed face. 2. Leave for 15 min and gently remove the mask. 3. Massage to absorb the excess product into your skin.