An aerosol container 190a provided with an outer container 11, a collapsible inner bag 12 inserted in the outer container, and a valve 13. The inner bag 12 comprises an upper and lower chamber 27, 26 and the chambers are divided at a constriction part formed in the middle of the inner bag by a partitioning member 72. The valve 13 has communicating holes that communicates valve 13 with the upper chamber 27 and the lower chamber 26 through a dip tube 28. An inner bag type aerosol product may be obtained by charging different kind of contents A and B into the container. Two-liquid reaction type agents, such as hair dye. enzyme hair dye, hair dress agent or setting agent for hair, reduction of inflammation pain killer, anti-heat flushes, coolants, pack agents, cleansing agents, shaving foams, moisturizers, antipersipirants. vitamin preparations, emollients and etc. may be preferably used for the combination of the contents for aerosol product.