Mixing capsule comprising a first chamber to receive a composition A and a second chamber to receive a composition B, the first chamber and the second chamber being arranged rotatably about the longitudinal axis of the mixing capsule , the first chamber comprising a first opening , the second chamber comprising a second opening , the first opening and the second opening being arranged perpendicularly to the longitudinal axis and faced to each other as well as plan-parallelly to each other and perpendicularly to the longitudinal axis, in particular standing perpendicularly on the longitudinal axis, preferably being arranged perpendicularly spaced from the longitudinal axis, the first opening and the second opening being arranged incongruently to each other in a storage position , the first opening and the second opening being arranged congruently to each other in a handling position , the mixing capsule comprising a first housing and a second housing , wherein the first housing comprises a first pipe section and a first tapered pedestal , the second housing comprising a second pipe section and a second tapered pedestal , the first chamber being arranged within the first pipe section , the second chamber being arranged within the second pipe section , the first housing and the second housing being mounted rotatably to each other about the longitudinal axis being parallel to the first pipe section and the second pipe section , and the longitudinal axis being arranged between the first pipe section and the second pipe section and between or in the first tapered pedestal and in the second tapered pedestal , the tapered pedestals of the first and second housing being adapted to form an engageable handle-like form by rotation about the longitudinal axis, characterised in that , the first chamber has a connection geometry at its side averting the second chamber being adapted to receive a nozzle having a piston section having a centrally situated cannula and means to penetrate a membrane of the common mixing chamber , the cannula being formed communicating with the common mixing chamber at its side facing the common mixing chamber and communicating with the environment at its side averting the common mixing chamber . the first housing comprises a first pipe section and a first tapered pedestal , the second housing comprising a second pipe section and a second tapered pedestal , the first chamber being arranged within the first pipe section , the second chamber being arranged within the second pipe section , the first housing and the second housing being mounted rotatably to each other about the longitudinal axis being parallel to the first pipe section and the second pipe section , and the longitudinal axis being arranged between the first pipe section and the second pipe section and between or in the first tapered pedestal and in the second tapered pedestal , the tapered pedestals of the first and second housing being adapted to form an engageable handle-like form by rotation about the longitudinal axis, characterised in that , the first chamber has a connection geometry at its side averting the second chamber being adapted to receive a nozzle having a piston section having a centrally situated cannula and means to penetrate a membrane of the common mixing chamber , the cannula being formed communicating with the common mixing chamber at its side facing the common mixing chamber and communicating with the environment at its side averting the common mixing chamber . <EOS>