The Multi-Peptide Lash and Brow Serum is a light, non-greasy formula designed to support thicker, fuller, and healthier-looking lashes and brows. By utilizing 11 active ingredients, including four peptide complexes and a series of natural extracts, this twice-daily serum works to help nourish and protect your lashes and brows while enhancing the look of density and overall appearance in as little as four weeks.