The “miracle” instant thickening hair tonic for men. The oil absorbing liquid spray that instantly injects thickness and body to limp, lifeless-looking hair — a true game-changer for men with fine, flat hair typeThe Forte Series Thickening Spray is a lightweight pre-styler formulated with a biotin-based complex to plump up hair strands to create a full-body, denser-looking head of hair.