In the composition of the present invention and the microneedle for treating partial obesity containing the composition, the composition of the present invention contains gelatin, decomposes fat in the body, and suppresses the production and accumulation of fat in the body. [Selection] Figure 1本発明の組成物及びこれを含む部分肥満治療用のマイクロニードルにおいて、本発明の組成物は、ゼラチンを含み、体内の脂肪を分解し、体内の脂肪の生成及び蓄積を抑制する。【選択図】図1