EXTERNAL PREPARATION OF SKIN

PURPOSE:To obtain an external preparation of skin having excellent stability with time, excellent utility and safety free from change of color, comprising a tranexamic acid and a specific phosphate. CONSTITUTION:(A) Tranexamic acid useful as a beautifying agent or a salt thereof (Mg salt or sulfate) or a derivative thereof (e.g. vitamin ester) or a mixture thereof is blended with (B) one or more selected from a phosphate shown by formula (MPO3)n and a phosphate shown by formula Mn+2PnO3n+1 (M is K or Na; n is >=2 number), preferably Na salt or K salt of hexametaphosphate, pyrophosphate or tripolyphosphate in the ratio of 0.1-30wt.%, preferably 6-20wt.% component A and 0.01-3wt.%, preferably 0.05-0.5wt.% component B.