Davines Energizing Thickening Tonic is a leave-in tonic to help increase the diameter of the hair fiber, helping to expand it with every application. Formulated to be light weight helps hair looks shiny and full bodied, but not weighed down. Regenerates and invigorates the scalp. All products in the Energizing family are enriched with a Hair Energy Complex, designed to help fight and protect against hair loss. Davines products are formulated without parabens and SLES/SLS sulfates.