To provide a skin improver for oral administration, hardly decomposed even when heated or put under an acidic condition, and sufficiently exhibiting skin-improving effects, and to provide a food composition for improving the skin, containing the skin improver.

The skin improver for the oral administration contains hyaluronic acid having ≥200,000 average molecular weight and 50-500 μm average particle diameter in ≥90% purity, preferably ≥95% purity, and/or a salt thereof as a main component.