“…,luteolin , kaempferol, quercetin, hierochins A and B, (2R,3S)-2,3-dihydro-2-(3,4-…-methoxyphenyl)-2-{4-[(E)-3-hydroxy-1-propenyl]-2-methoxyphenoxy}-1,3-propanediol, and 3,4-dihydroxybenzaldehyde substantially inhibited melanogenesis with IC(50) values of 6.… inhibition of tyrosinase activity suggested to be important.”