Bamboo is the worlds richest source of natural silica, the lightweight mineral vital to creating volume in hair. Bamboos abundant silica swells the diameter of each hair fibre from within, for noticeably thicker hair.Adds fullness with weightless texture.- Delivers strong control to support style u0026 build body.- Contains reflective mica for added shine.- Provides thermal protection from heat styling.- Hold: 6 of 10.