Encourage thicker, fuller-looking eyelashes with the Olaplex LashBond Building Serum. Powered by exclusive Bond Building Technology™ and a new Peptide Complex Technology, the formula nourishes and hydrates to help reduce the feel and appearance of dry, brittle lashes. The highly-concentrated formula works morning and night to condition the eyelashes, while encouraging the illusion of a multiplied effect. Thanks to hyaluronic acid, the serum leaves the eyelashes feeling stronger with a lifted and lengthened appearance. The clear serum is compatible with the use of contact lenses, lash extensions, lash lifts and false lashes, fitting seamlessly into your beauty routine. Ophthalmologist tested. Clinical Results: 94% experienced more voluminous-looking lashes 97% reported improvement in the appearance of denser lashes 97% reported improvement in the appearance of longer lashes 100% reported improvement in the appearance of thicker lashes* *Results may vary. As reported by participants after 4 weeks in a consumer perception clinical study of 33 subjects with 2x daily use.