what is the best hair thickening product on the market?
['Nexxus Diametress Shampoo: Best shampoo for making hair stronger and fuller. ... ', 'Aveda Thickening Tonic: Best blow-dry lotion. ... ', 'Bumble and Bumble Thickening Full Form Mousse: Best hair thickening mousse. ... ', 'Windle and Moodie Thickening Cream: Best thickening cream to volumise hair.']