Kopexil (Diamino Pyrimidine oxide) is a chemical compound used to increase the volume of hair in the growth stage by working on the deep structure of the roots. It rejuvenates the hair roots so that healthy hair growth can persist. The perifollicular fibrosis is a condition in which collagen around the roots becomes rigid, tightens, and pushes the hair out. Kopexil helps in softening of the collagen.

Kopexil（二氨基嘧啶氧化物）是一种化合物，用于通过对根的深层结构进行处理来增加生长阶段的头发体积。它使头发恢复活力，使健康的头发生长持久。 perifollicular纤维化是一种条件，其中根周围的胶原变硬，收紧，并将头发推出。 Kopexil有助于软化胶原蛋白。