Chris Christensen Thick N Thicker Leave In 237ml Nutrient infused thickening treatment. This leave-in coat treatment delivers noticeable fuller-looking and thicker-feeling coats in just one bottle. This hair volumising spray helps to thicken the existing hair, leaving a fuller and thicker finish. The formula penetrates individual hairs, strengthening their overall resilience to breakage. Pro-vitamin formula Thicker & fuller coat Strengthens weakened hair follicles Directions: Apply to dry or damp coat. Spray over the coat thoroughly. Massage into the coat with your fingertips. Continue styling as usual.