Abstract: Provided is a method for preventing or improving UV-induced skin damage of a subject in need thereof, which comprises administering to the subject an effective amount of a composition containing hydrangenol derived from the extract of Hydrangea serrata as an active ingredient. The composition containing hydrangenol derived from the extract of Hydrangea serrata is able to increase secretion of hyaluronic acid and procollagen type-1 and inhibit secretion of MMP-1 in skin cells, and therefore effective in preventing or improving UV-induced damage of skin cells. Accordingly, the hydrangenol-containing composition is usefully available as a quasi-drug, drug, food, or cosmetic composition.

Abstract: Provided is a composition for preventing and treating muscle diseases, improving muscle functions, or enhancing motor performance that comprises hydrangenol or a hydrangenol-containing extract of Hydrangea as an active ingredient. The hydrangenol or Hydrangea extract containing hydrangenol is derived from natural materials and thus can be used safely without any adverse effect, and the composition comprising the hydrangenol or Hydrangea extract can be used beneficially as a medical, food, quasi-drug, or cosmetic composition having a good effect of preventing and treating muscle diseases, improving muscle functions, and enhancing motor performance.

Abstract: Provided is a composition for preventing or improving UV-induced skin damage that contains hydrangenol derived from the extract of Hydrangea serrata as an active ingredient. The composition containing hydrangenol derived from the extract of Hydrangea serrata is able to increase secretion of hyaluronic acid and procollagen type-1 and inhibit secretion of MMP-1 in skin cells, and therefore effective in preventing or improving UV-induced damage of skin cells. Accordingly, the hydrangenol-containing composition is usefully available as a quasi-drug, drug, food, or cosmetic composition.