The purpose of the present invention is to provide a twin pack aerosol dentifrice having excellent storage stability with which it is easy to form a high performance dentifrice composition. This twin pack aerosol dentifrice is provided with a dual layer container having a filling space for propellant and two filling spaces for stock solution the dual layer container being equipped with a discharge mechanism for simultaneously discharging the contents filled in the two filling spaces for stock solution the twin pack aerosol dentifrice being characterized in that the filling space for propellant is filled with propellant comprising compressed gas the first filling space for stock solution is filled with a first stock solution composition containing a medicinal ingredient and having a viscosity at 20°C of 1000 125 000 mPa·s and the second filling space for stock solution is filled with a second stock solution composition not containing said medicinal ingredient and having a viscosity at 20°C of 1000 125 000 mPa·s.
