PROBLEM TO BE SOLVED: To provide a hair cosmetic and a skin cosmetic having a prostaglandin D(PGD) production inhibitory effect, and an excellent hair loss inhibitory and skin conditioning action.SOLUTION: The invention provides a hair cosmetic and a skin cosmetic containing a PGDproduction inhibitor and a 5&alpha-reductase activity inhibitor containing at least one kind of plant extract selected from the group consisting of Rosemary extract, Time extract, Rumput roman extract, Scutellaria root extract, and Eucalyptus extract. As the 5&alpha-reductase activity inhibitor, it is preferable to be at least one kind of plant extract selected from the group consisting of Pomegranate extract, Caryophylli flos extract, Guttiferae extract, Guava extract, and Sage extract.
