Shiseido's Full Lash and Eyebrow Serum is a high-performance treatment designed to promote visibly fuller, thicker, and longer lashes and brows. Its hydrating formula is infused with Arginine, a key ingredient known to support hair vitality and strength. This serum works to prevent breakage, transforming sparse or short hairs into a denser, healthier-looking state with a natural shine. The lightweight texture absorbs quickly at the root without residue, and the unique flocked-tip applicator allows for precise, comfortable application along the lash line and throughout the brows. This product is both dermatologist and ophthalmologist tested.