The present specification discloses a composition for preventing or improving muscle strength improvement or sarcopenia, including angelica extract, cnidium extract and peony extract. The composition as an aspect of the present invention can fundamentally improve muscle strength and muscle degeneration related diseases such as sarcopenia by promoting the expression of myocyte differentiation factor. In addition, the composition is completely harmless to the human body because it utilizes an extract of a natural plant as an active ingredient.
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