To provide an anti-aging agent with excellent anti-aging action, a hair-growing agent with excellent hair-growing action, and an anti-obesity agent with excellent anti-obesity action, and a cosmetic and a food/drink product containing at least one of the agents.SOLUTION: There are provided an anti-aging agent, a hair-growing agent, and an anti-obesity agent which contain a yeast fungus fermented product produced by fermenting sake lees extract liquid by yeast fungus. There are provided a cosmetic and a food/drink product for at least one kind selected from anti-aging use containing an anti-aging agent, hair-growing use containing a hair-growing agent, anti-obesity use containing an anti-obesity agent. It is a preferable aspect that the yeast fungus is genus Saccharomyces veronae.SELECTED DRAWING: None

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