The bumble and bumble thickening shampoo is an amplifying formula for larger than life locks created for those with fine limp or thinning hair the wonder wash will make it feel thicker fuller and well nourished it moisturises without weighing hair down and helps to smooth split ends and fly aways the colour compatible thickening shampoo is the first step in your journey to full and glamorous hair simply wet the hair lather the shampoo in your palms massage through and rinse away