PROBLEM TO BE SOLVED: To provide a highly safe testosterone 5&alpha-reductase activity inhibitor excellent in testosterone 5&alpha-reductase inhibitory effect, and useful for prevention and treatment of male pattern alopecia and acne symptoms and a hair growing composition and a composition for acne including the testosterone 5&alpha-reductase activity inhibitor.SOLUTION: A testosterone 5&alpha-reductase activity inhibitor includes a liposome/gold nanocolloid complex containing an anti-inflammatory ingredient. A hair growing composition and a composition for acne including the testosterone 5&alpha-reductase activity inhibitor are also provided.
