Patent ID: 11950682
Assignee: HENKEL AG & CO. KGAA
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 5:
6. A method of providing a hair treatment agent comprising:
capturing a reflected light from a hair of a user by employing a sensor device having at least one portable sensor wherein the at least one portable sensor includes at least one optical sensor;
determining a light absorption intensity of the hair of the user in response to the reflected light and estimating a cysteic acid content of the hair of the user in response to the light absorption intensity, wherein the cysteic acid content is estimated in response to a stored relationship between a cysteic acid content value and a measure of light absorption intensity, wherein the relationship is determined in response to a plurality of light absorption measurements made on a plurality of hair samples having a known cysteic acid content;
computer-assisted determining a user-specific hair treatment agent in response to the cysteic acid content, wherein the user-specific treatment agent includes at least one of a hair coloring agent, a hair care agent and a hair styling agent; and
preparing the user-specific hair treatment agent.