Abstract: The present invention provides a composition for wound healing, which includes an effective amount of a citrus polyphenol. Moreover, the present invention also provides a method for improving wound healing and improving fibroblasts migration and/or proliferation, which includes applying an effective amount of citrus polyphenol to the wound and fibroblasts.

Abstract: An injector for bone regeneration is provided, including: a syringe; a needle having an embedding portion for embedding the needle in the syringe, an injecting portion integrally connected to the embedding portion and protruding from the syringe, and a channel penetrating through the embedding portion and the injecting portion for receiving an inducible bone regeneration material; and a pushing element having a rod that is less in diameter than the channel of the needle, slidably and axially disposed in the channel of the needle, for pushing the inducible bone regeneration material to move through the injecting portion and be injected into a bone portion of a patient, when the rod in the channel of the needle is pushed toward the injecting portion. The injector has a reduced size, and is beneficial for treatment of bone defects.