N°48 Acne Mask StrongThe base of this mask is the freshwater sponge, containing a treasure trove of valuable ingredients that provide the unique qualities of our product. For instance, biogenic silica (silicon oxide) is said to improve circulation, while spongin (collagen protein) can help improve skin elasticity and reduce inflammation. This mask is easy to use, very efficient and contains only natural ingredients. The black colour is derived from a natural sorbent