This L'Oreal Paris eyelash serum product conditions and cares for your lashes and is eye safety tested Specially formulated with lash caring complex, our best eyelash serum contains ingredients including glycerin, pro vitamin b5, hyaluronic acid, madecassoside and arginine. Use Lash Serum Solution 2x a day, morning and night for 4 weeks to get a denser, thicker-looking lash fringe- Stop worrying about eyelashes falling out during removal- 7 of 10 women saw less lash loss during makeup removal