With the new formula, FORCE-PLASTY, the BIO TANIX EXTREME line smoothes even the most rebellious hair, reduces volume and eliminates frizz in just one application without yellowing and without losing the tone of the previously colored hair. The new formula contains essential ingredients for a complete recovery of the smoothing process and for total nutritional safety of the strands. Say goodbye to aggressive and preservative chemicals. With BIO TANIX EXTREME the hair gets a more natural look, intense shine, remains healthy and free from daily aggressions.