BIODANCE Bio-Collagen Real Deep Mask Bundle is a pack of overnight Korean sheet masks that is made with high concentrations of collagen. This mask works by increasing collagen production, firming and lifting skin while leaving a healthy and fresh-looking glow after use. It is a hydrogel type mask that starts off as white and gradually turns transparent as the skin absorbs the nutrients. Suitable for all skin types, this mask can be used overnight or for a few hours. Key Points: Delivers collagen deep into the skin's layers Hydrogel sheet mask Can be worn for a few hours or overnight Helps reduce wrinkles, lines and droopy skin Adheres to skin comfortably Size: 4pcs MADE IN KOREA. All of our products are 100% authentic.