NULASTIN Lash Follicle Fortifying Serum visibly enhances lash length, strength, and fullness. This ophthalmologist-tested, cruelty-free serum is clinically proven to boost lash appearance in as soon as 6 weeks, with double the volume in 12. Its Elastaplex® Technology, a blend of signal peptides and proteins, supports the natural growth cycle and aids in anchoring lash follicles at the root, promoting visibly thicker and longer-looking lashes through elastin replenishment.