Disclosed is a system for production of a cosmetic product including: at least one first single-use packaging unit including a preset quantity of a first phase of a cosmetic product, at least one second single-use packaging unit including a preset quantity of a second phase of a cosmetic product, a machine including a mixer inside of which the mixture of the preset quantity of the first phase and the preset quantity of the second phase is done automatically in order to end up with a cosmetic product directly consumable by the end consumer. The mixing is done in a manner such that neither the first phase nor the second phase are in direct contact with any part of the mixer which is not single use, thus avoiding dirtying the mixer.