There currently exists no needle capable of delivering pharmaceutical or cosmetic ingredient(s) into deep layers of integumental tissue (e.g. skin, scales, bark), nor any needle device designed to facilitate the precise administration of a desired dose, and to limit inflammation, pain, and other side effects associated with the needle(s). The present invention relates to an integumental dissolving needle -- which houses micronized cosmetic/pharmaceutical ingredient(s), encapsulated by a coating agent absorbed into the integument -- arranged on the surface or surfaces of a poultice. Needle thickness and length may be varied according to the biological species of interest. In addition, dosage(s) is/are printed on each section of the device to make explicit how many milligrams of the ingredient are present per unit area； these sections may be separated from one another along groove(s) or other markers on the device. The present invention is a needle device consisting of the above components.
