医疗美容板块8月21日涨1.37%，锦波生物领涨，主力资金净流入45.74万元

Group 1 - The medical beauty sector increased by 1.37% on August 21, with Jinbo Biological leading the gains [1] - The Shanghai Composite Index closed at 3771.1, up 0.13%, while the Shenzhen Component Index closed at 11919.76, down 0.06% [1] Group 2 - The medical beauty sector saw a net inflow of 457,400 yuan from main funds, while retail investors experienced a net outflow of 859,410 yuan [2] - Specific stock performances included Huaxi Biological with a net inflow of 7,907,300 yuan, while *ST Meigu and Aimeike had net outflows of 3,103,300 yuan and 4,346,600 yuan respectively [2]