LASHBOND™ Building Serum is a highly concentrated, clinically tested lash serum with new OLAPLEX Peptide Complex Technology™ for longer, thicker, stronger and healthier lashes in just 4 weeks.*.The natural lashes of your dreams are just weeks away. Discover the power of hair expert science. Just one brush of LASHBOND™ Building Serum morning and night delivers a powerful, lash-enhancing trifecta that supports the natural growth cycle and counteracts lash loss. For more well-groomed and healthier-looking lashes in just 2 weeks and longer, thicker-looking lashes in 4 weeks.LASHBOND™ is ophthalmologist tested and is compatible with contact lenses, eyelash lifts, eyelash extensions and false eyelashes.*Results may vary. Based on a clinical consumer perception study with 33 subjects after 4 weeks of use.For longer & curlier lashes.For fuller & thicker lashesFor healthier & more well-groomed eyelashesApplication:1. dip the brush once and apply the serum along the upper lash line of both eyes. Do not wash off.2. let it dry for at least 90 seconds before applying other eye products. Use 2x daily, morning and evening, on clean, dry skin.