MELANIN FORMATION INHIBITOR
Document Type and Number:
Japanese Patent JP2719300
PURPOSE: To provide a novel melanin formation inhibitor exhibiting an excellent tyrosinase activity inhibitory effect and an excellent melanin formation inhibitory effect in a low concentration and excellent in the stability and safety.
CONSTITUTION: There is provided a melanin formation inhibitor composed of a biphenyl compound of the formula (R is H or a 1 to 8C straight or branched-chain saturated hydrocarbon group). This inhibitor is useful as an admixture component of a cosmetic for preventing formation of a spot or a freckle due to excessive formation of melanin caused by ultraviolet rays, etc., or a medicine as a therapeutic and preventive medicine for pigmentation.
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A61K8/30; A61K8/00; A61K8/33; A61Q17/04; A61Q19/00; A61Q19/02; A61K8/30; A61K8/00; A61Q17/04; A61Q19/00; A61Q19/02; (IPC1-7): A61K7/48; A61K7/00