Abstract: Disclosed are propylene glycol hyaluronate esters having an esterification degree of 10-90% and a limiting viscosity of 3-35 dL/g as well as skin conditioning methods, moisturizing methods and emulsifying methods using said propylene glycol hyaluronate esters. Propylene glycol hyaluronate esters of the present invention are compounds showing excellent viscosity stability in low-pH systems and cation-containing systems and also showing high emulsifiability, hydration power and moisturizing effect.

Abstract: Disclosed are propylene glycol hyaluronate esters having a limiting viscosity of 14-35 dL/g and an esterification degree of 10-90% as well as skin conditioning methods, moisturizing methods and emulsifying methods using said propylene glycol hyaluronate esters. Propylene glycol hyaluronate esters of the present invention are compounds showing excellent viscosity stability in low-pH systems and cation-containing systems and also showing high emulsifiability, hydration power, moisturizing effect and liposome stabilizing effect.

Abstract: A sphingoglycolipid represented by the following formula: obtained from a bacterium of the genus Sphingomonas, further from the species paucimobilis, capsulate or adhaesiva, after being washed with acetone and then extracted with alcohol or alcohol-water mixture. R1 represents a sugar portion of a single uronic acid or one to four hexoses of uronic acid, glucosamine, galactose and/or mannose; R2 represents an alkyl group which may have a cycloalkyl group, an alkenyl group or an alkynyl group; and R3 represents an alkyl group.

Abstract: A white fungus of genus Sphingomonas, when washed with acetone and then extracted with alcohol or alcohol-water mixture yields a shingoglycolipid represented by the following formula: 1

Abstract: The present application discloses an external composition for skin comprising a component obtaind by washing a bacterium of the genus Sphingomonas with acetone and then extracting the resultant with alcohol or alcohol-water mixture; an external composition for skin comprising a component extracted from a white bacterium of the genus Sphingomonas; and an external composition for skin comprising a sphingoglycolipid represented by the following formula: where, R1 represents a sugar portion consisting of a single uronic acid or one to four hexoses selected from a group consisting of uronic acid, glucosamine, galactose and mannose; R2 represents an alkyl group which may have a cycloalkyl group, an alkenyl group or an alkynyl group; and R3 represents an alkyl group; these alkyl, alkenyl and alkynyl groups being straight or branched, and substituted or unsubstituted. These external compositions for skin exhibit excellent moisturizing and skin roughnes prevention effects.

Abstract: The present application discloses an external composition for skin comprising a component obtained by washing a fungus of genus Sphingomonas with acetone and then extracting the resultant with alcohol or alcohol-water mixture; an external composition for skin comprising a component extracted from a white fungi of genus Sphingomonas; and an external composition for skin comprising a sphingoglycolipid represented by the following formula: 1