Abstract: The present invention relates to a method for determining, from a set of physical elements (10), a specific value of an input data for a tool (12) for determining a customized cosmetic action for an individual (I), each physical element (10) having a sensory property representative of a characteristic of a body zone and associated with an identifier, each identifier being associated with a predefined value of said input data characterizing said body zone according to a match table, the method comprising the following steps:—selecting a physical element (10) for the individual (I) among the set of physical elements (10), —acquiring, via the calculator (14), the identifier of the selected physical element (10), and—determining, via the calculator (14), the predefined value of the input data corresponding to the identifier acquired according to the match table.

Abstract: Methods for creating custom hair formulations include generating a first input set and a second input set, formulating a hair formulation recipe, displaying a predicted hair color on the user input device, and dispensing a hair formulation from a dispenser. The first input set is based upon a plurality of present hair state inputs received by a user input device of a hair formulation system. The second input set is based upon a target hair state input received by the user input device. Formulating the hair formulation recipe includes using a processor of the hair formulation system that is operatively connected to the user input device to formulate the hair formulation recipe based upon the first and the second input sets. The predicted hair color is based upon at least one present hair state inputs and the target hair state input.

Abstract: Methods for creating custom hair formulations include generating a first input set and a second input set, formulating a hair formulation recipe, displaying a predicted hair color on the user input device, and dispensing a hair formulation from a dispenser. The first input set is based upon a plurality of present hair state inputs received by a user input device of a hair formulation system. The second input set is based upon a target hair state input received by the user input device. Formulating the hair formulation recipe includes using a processor of the hair formulation system that is operatively connected to the user input device to formulate the hair formulation recipe based upon the first and the second input sets. The predicted hair color is based upon at least one present hair state inputs and the target hair state input.