Get full, voluminous-looking brows with this buildable, fiber-infused brow gel , Apply gel alone or as a top coat over brow powder or pencil Get full, voluminous-looking brows with this buildable, fibre-infused brow gel. This wax-gel hybrid formula adheres to brow hairs and brushes them into place while depositing hair-like fibres for fuller-looking brows that WOW.