Product Overview Create high-definition styles with Nioxin 3D Styling Thickening Gel 140ml, which works by adding shape & texture to thin, dull hair. Benefits Formulated with unique PRO-THICK technology, this gel works its way gently into your hair, to create bonds that allow for thicker-looking styles. It prides itself on being lightweight, with no build-up or residue, meaning that you can feel confident knowing that nothing stands in the way of your fuller, more radiant appearance.