PROBLEM TO BE SOLVED: To provide myoblast growth-promoting agents and focus adjustment functional improvement agents having excellent safety and excellent actions/effects, such as muscle strength enhancement and atrophy inhibition, muscle metabolism promotion, recovery of eyesight and prevention of reduced visual acuity accompanied by the same.SOLUTION: Provided are a myoblast growth-promoting agent and a focus adjustment functional improvement agent characterized by containing a ground product or extract of Asteraceae Chrysanthemum plants.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】安全性に優れるとともに、筋力の増強や萎縮抑制、筋力代謝の促進、それに伴う視力の回復や視力低下の防止等優れた作用・効果を有した筋芽細胞増殖促進剤及びピント調整機能改善剤の提供。【解決手段】キク科キク属植物(Chrysanthemum)の粉砕物又は抽出物を含有することを特徴とする筋芽細胞増殖促進剤及びピント調整機能改善剤。【選択図】図1