BROWBOND® Building Serum gives you fuller, denser, more defined brows in just 4 weeks. Thanks to its micro-bristle foam applicator, it sculpts brows without stiffness or residue, and contains an innovative peptide to reduce the appearance of grey hairs. 90% of people who used it saw denser brows, 93% found them healthier, and 100% found that their brows held in place without stiffness. Ophthalmologically and dermatologically tested.