What is the fine-grained topic of the following text: It contains micro-sponges of plants origin and clay, it helps to absorbs excess sebum, without drying out the skin, and it helps to reduce any dead cells on the skin and any impurity, if you gently massage into your skin before to wash it off after keeping it on for 10 to 15 minutes. Only return the topic.
Plant-based micro-sponge and clay facial treatment for oily and impure skin