Anua - Heartleaf 70 Soothing Collagen Mask 38G / 1.34OzAnuas exclusive HEARTLEAF+, Python Calming complex and Collagen synergy helps soothe and calm the skin, deeply nourishes it through moisturizing, and leaves it smooth. Texture Gel like Face Mask How to use After cleansing, use a toner to refine the skin texture, then take out the separated upper & lower masks and remove the film. Leave the make on for 3 to 4 hours until it turns transparent, then remove the mask and pat in the remaining essence.