Definitive Lash Serum

Definitive · Lash Fuller, longer-looking lashes with once-daily use. A concentrated peptide lash treatment designed to support visible lash length, density, strength, and resilience. Prostaglandin-free and hormone-free. The Formulation Definitive Lash Serum is a concentrated treatment powered by peptides, botanical actives, biotin, caffeine, panthenol, and amino acids. Applied once daily along the upper lash line, it helps support the appearance of longer, fuller, stronger-looking lashes while conditioning the lash root and fibers. Most lash serums work like a drug. This one works like skincare. Biotin-Peptide Complex A biotin-peptide complex with panthenol that supports the appearance of longer, fuller, stronger lashes while conditioning the fiber. Capixyl A peptide and red clover complex selected to support the look of denser, fuller, more resilient lashes. Phyto-Peptide Complex A turmeric-derived botanical biotech active selected to support healthier, fuller, more resilient-looking lashes. Amino Acid Complex A hair-focused amino acid blend that helps hydrate, soften, and support flexible, healthier-looking lashes. Myristoyl Pentapeptide-17 A targeted peptide selected to support lash length, fullness, and visible strength. The Difference Most lash serums work like a drug. This one works like skincare. Visible Results Length Visibly longer-looking lashes over time. Density Improved appearance of lash density and thickness. Strength Stronger-looking, more resilient lashes. Condition Biotin, panthenol and amino acids condition the fiber.