Double Extend® Lash Boosting Serum, for visibly fuller, thicker natural lashes with less lash fall-out when removing makeup. The breakthrough formula contains Centella Asiatica Extract and Arginine to reinforce, condition, and protect each lash. Apply daily under your mascara and at night to bare lashes to transform your natural lashes, and see more lashes in just 4 weeks!* *Consumers found lashes appear multiplied with daily application of mascara and twice daily application of serum: underneath mascara and on bare lashes overnight. For boosted results, use the serum together with Double Extend® Lash Boosting Mascara.