100% VeganThermafuse products are formulated to protect and repair heat-styled hair by utilizing HeatSmart Complex®. This registered technology combines a molecule from natural ingredients that are substantive and capable of penetrating deep into the hair shaft, with a molecule that makes heat good for hair. This newly formed molecule, along with 7 other ingredients from nature, are activated with the heat from blow dryers to make your hair look and feel it’s very best.