Device for storing and mixing substances (10) comprising a container (14) which has an open end (16) and a closed end (18) and a cap (12) which is arranged at the open end (16) of the container (14), characterized in that the container (14) has at least two chambers (20) which are separated from each other by at least one wall (22), wherein the at least one wall (22) extends from the closed end (18) to the open end (16) of the container (14), and at least one projecting element (24) is constructed in the cap (12) in such a manner that the at least two chambers (20) can be closed by the projecting element (24) in the region of the open end (16) of the container (14).