The new Nourish Serum gently stimulates the growth of the lashes with its Biotin formulation. Clients will notice a denser lash line within a few weeks of use.This serum is highly recommended for all clients who have recently had the YUMI lash lift treatment or for those with lashes that appear to be slightly damaged or sparse. 9,2mlStudies have shown the following results: From + 17% to + 43% length increase From + 19% to + 40% volume increase In just 15 days of application Apply twice a day on lashline and eyelashes. (in the evening after make-up removal and in the morning before make-up to restore a beautiful curl to the eyelashes).