Elastic formula lengthens and sets the perfect curl. Even longer lasting curl. No clumps. No globs. Curl Activator Brush. Washable Mascara. Contact lens safe; Hypoallergenic. Advanced Curl Activator Brush is specially designed to seek out your lashes and shape them into beautifully long curls with no clumps or globs; Exclusive Elastic Formula dries quickly to instantly set the curl in place as it lengthens your lashes.