Neutrogena Healthy Lashes Lash Enhancer Serum is a gentle and effective lash serum that helps improve the look of lashes. This serum is formulated with a blend of peptides and botanicals that nourish and strengthen lashes, promoting their growth and thickness. With regular use, you can expect longer, fuller, and healthier-looking lashes. The serum is ophthalmologist-tested and safe for sensitive eyes.