Bright provide of this Hair closes object with what active constituent Yan Long Buddhism Fang Group, and it includes form Zhi Quality Eat and Ji Quality by biodegradable polymer. The bright It Ti of this Hair closes the method for object Gong Productivity Sheng Ji Quality Group and closes object using Ji Quality Group to need being provided active constituent by Treatment person Body Inner is controlled and being controlled the method that Buddhism puts for its.本發明提供了用於活性成分的延長釋放的組合物,其包含由生物可降解聚合物形成的脂質飽和的基質。本發明還提供了產生基質組合物的方法和使用基質組合物以在需要其的受治療者體內提供活性成分的控制釋放的方法。