Bumble and Bumble Thickening Starter Set Retails for $35 Set Components: Thickening Volume Shampoo 2fl oz/60ml Thickening Volume Conditioner 2fl oz/60ml Thickening Dryspun Texture Spray 1.5oz/41g Build sky-high volume and everyday fullness with favorites from our Thickening Collection. Adds volume Hydrates hair Lightweight Thickening Dryspun Texture Spray delivers +40% more volume instantly vs. untreated hair (and it lasts all day).