Abstract: A method of evaluating the health of skin, containing the steps of: preparing a lipid sample from a collected sample of a stratum corneum of a test subject; quantitatively determining respective contents of one kind of ceramide component A and one kind of ceramide component B included in the prepared lipid sample prepared from a collected sample of a stratum corneum of the test subject; calculating the content ratio of the quantitatively determined content of the ceramide component A to the quantitatively determined content of the ceramide component B; and evaluating the health of the skin of the test subject from the calculated content ratio; wherein the ceramide component A is selected from the group consisting of a non-hydroxyacyl-phytosphingosine ceramide, a non-hydroxyacyl-6-hydroxysphingosine ceramide component, an esterified ?-hydroxyacyl-6-hydroxysphingosine ceramide component and an esterified ?-hydroxyacyl-phytosphingosine ceramide component; and the ceramide component B is selected from the gro