| abstract |
A microneedle device suitable for application to the skin and methods for using the same. The microneedles are made of one or more biocompatible polymers that optionally provide a cosmetic benefit when dissolved within the skin. Optionally, the microneedles also may be used to deliver other active ingredients to the skin. The device is characterized by a microneedle layer, an intermediate layer of a liquid-soluble polymer, and an outer, liquid-permeable layer that is in fluid communication with the intermediate layer. In use, the device is applied to the skin such that the microneedles penetrate the skin surface. A liquid (e.g., water) is applied to the outer layer, causing dissolution of the intermediate layer, thereby detaching the microneedles within the skin from the device body. The remainder of the device is then removed and discarded. |