Bottle for extemporaneous-preparation products, particularly medicinal, pharmaceutical, cosmetic products, comprising: - at least a tank for the containment of a first substance liquid, which has at least a dispensing mouth; - at least a container (6, 7) for the containment of a second substance in powder associable with said tank in proximity of said dispensing mouth, the inner volume of said container (6, 7) being temporarily separated from the inner volume of said tank and suited to be put in communication with it for mixing the first substance and the second substance to form a product, said container (6, 7) comprising a blistered capsule having: - a first foil deformable and shaped to define a containment cavity of said second substance; and - a second foil breakable, which is associated with said first foil to close said containment cavity and is turned towards said dispensing mouth, the application of a pressure on said first foil determining the breaking of said second foil for the outflow and mixing of the first substance and of the second substance to form said product; the bottle further comprises: - at least a pressing member moving between a packaging configuration, wherein said pressing member is kept at a distance from said blistered capsule (6, 7), and a release configuration, wherein said pressing member is arranged in contact against said first foil for breaking said second foil; and - a removable cap which is associable with said tank for covering said dispensing mouth and said blistered capsule (6, 7), wherein said pressing member and said cap are made in a single body piece; characterized in that said pressing member and said cap are joined together along a pre-breaking line which can be broken for the switch of said pressing member from said packaging configuration to said release configuration. - at least a tank for the containment of a first substance liquid, which has at least a dispensing mouth; - at least a container (6, 7) for the containment of a second substance in powder associable with said tank in proximity of said dispensing mouth, the inner volume of said container (6, 7) being temporarily separated from the inner volume of said tank and suited to be put in communication with it for mixing the first substance and the second substance to form a product, said container (6, 7) comprising a blistered capsule having: - a first foil deformable and shaped to define a containment cavity of said second substance; and - a second foil breakable, which is associated with said first foil to close said containment cavity and is turned towards said dispensing mouth, the application of a pressure on said first foil determining the breaking of said second foil for the outflow and mixing of the first substance and of the second substance to form said product; - a first foil deformable and shaped to define a containment cavity of said second substance; and - a second foil breakable, which is associated with said first foil to close said containment cavity and is turned towards said dispensing mouth, the application of a pressure on said first foil determining the breaking of said second foil for the outflow and mixing of the first substance and of the second substance to form said product; - at least a pressing member moving between a packaging configuration, wherein said pressing member is kept at a distance from said blistered capsule (6, 7), and a release configuration, wherein said pressing member is arranged in contact against said first foil for breaking said second foil; and - a removable cap which is associable with said tank for covering said dispensing mouth and said blistered capsule (6, 7), wherein said pressing member and said cap are made in a single body piece;