Abstract: Provided is a derivative or a polyhydroxy cyclic compound represented by Formula I or a pharmacologically acceptable salt thereof with excellent whitening effects, comprising; wherein {circle around (A)} is derived from an aromatic cyclic compound, B is hydrogen, oxo (?O), amino (—NH2), imino (?NH), or a saturated or unsaturated straight or branched alkyl, alkoxy, monoalkylamino, or dialkylamino group having 1 to 10 carbon atoms, Cn, Cn+1and Cn+2 are three neighboring carbon atoms present in the aromatic cyclic compound, wherein n is a positive integer, R1 is hydrogen, hydroxy, or a saturated or unsaturated straight or branched alkyl or alkoxy group, X and Y are selected from a group consisting of hydrogen, hydroxy, and a saturated or unsaturated straight or branched alkoxy, or acyloxy group, and one of X and Y is hydrogen, R2, R3, R4 and R5 are each independently at least one substituent selected from a group consisting of hydrogen, alkyl, alkoxy, acyloxy, acyloxymethyl, oxo, hydroxy, vinyl, nitrile, c

Abstract: Provided is a skin whitening composition with excellent whitening effects, specifically, a derivative or a polyhydroxy cyclic compound represented by Formula I or a pharmacologically acceptable salt thereof, comprising; wherein is derived from an aromatic cyclic compound, Cn, Cn+1 and Cn+2 are three neighboring carbon atoms present in the aromatic cyclic compound, wherein n is a positive integer, R1 and R2 are each a saturated or unsaturated straight or branched alkyl or acyl group having 3 to 12 carbon atoms, and R3, R4, R5 and R6 are each independently at least one substituent selected from hydrogen, alkyl, alkoxy, acyloxy, acyloxymethyl, oxo, hydroxy, vinyl, nitrile, carboxaldehyde, carbonitrile and aldehyde.

Abstract: Disclosed is a composition for prevention of hair loss and promotion of hair growth. The composition includes a compound represented by Formula 1, wherein A is derived from polycyclic compounds, and R is a hydroxyl group, or a saturated or unsaturated straight or branched alkyloxy or acyloxy group having 1 to 20 carbon atoms.

Abstract: The invention relates to 5,15-diacetyl-3-benzoyllathyrol compound and a skin whitening composition containing the same. Since the composition of the invention contains 5,15-diacetyl-3-benzoyllathyrol as a melanine production inhibitor, it is excellent in inhibiting pigment stagnation and improving the discoloration of the skin or freckles. In addition, since it does not induce a secondary effect, it has excellent stability.