If a thick, full mane doesn't come natural, the Jack Black True Volume Thickening Shampoo can give thinning strands a boost. The sulfate-free shampoo not only removes oil and buildup but with its thickening complex cleverly called Expansion Technology, the product can bulk up hairs and add volume. A botanical-based blend adds a healthy shine to the mix as well as a soothing scent.

16oz / 473mL