HAIR DYE COMPOSITION

World Intellectual Property Organization Patent

APP PUB NO WO-2025076186-A1
SERIAL NO

PCTUS2024049747

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Abstract

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A tunable hair dye composition that includes a photochoromic dye, a cosmetically acceptable solvent and, optionally, a carrier. When activated with a suitable activating electromagnetic radiation, the photochromic dye molecule changes color, thereby imparting a temporary color change to the composition and hair to which it is applied. When deactivated, the photochromic dye is generally colorless. The color imparted by the photochromic dye can be tuned by adjusting the wavelength and/or fluence of the activating and/or deactivating electromagnetic radiation. Thus, a wide variety of different hair colors can be obtained from a single hair dye composition containing specific combinations of photochromic dyes.

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Patent Owner(s)

Patent OwnerAddress
PROCTER & GAMBLEUSONE PROCTER & GAMBLE PLAZA CINCINNATI OHIO 45202 45202

International Classification(s)

Inventor(s)

Inventor Name Address
FAN SHUFEN SINGAPORE
TEE MEI YI SINGAPORE
LIM PEI QI SINGAPORE
TAN XIN YA SINGAPORE

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