Babe Original Babe Lash Eyelash Growth Serum with Biotin and Panthenol. This award-winning eyelash serum is our #1 best-seller and has a highly devoted following for one reason: it works! If you have wanted your lashes to look longer and more fluttery, all without needing extensions or falsies, consider this your sign to try the Babe Lash. Apply serum every night directly to your lash line on clean, dry skin. One dip of the wand is enough serum for both eyes. Avoid touching your eyes until serum has dried. When you're satisfied with the results, continue to apply serum 2-3 times per week to maintain lashes.