Our first longwear brow gel to fill & thicken brows that last for up to 48 Hours. Build & Sculpt your dream brow from natural to intense with the dual-sided angled brush and spoolie. Brows for days with Unbelievabrow Longwear Brow Gel! Available in 8 ShadesBrows enhanced up to 48 hours A longwear brow gel to fill and thicken brows that last. in a consumer testAvailable in 8 Shades**In a consumer test L'Oreal Paris Unbelieva-Brow Longwear Waterproof Brow Gel, Brunette - 0.