Want the look of dense, defined, age-defying brows? BROWBOND® Building Serum is an innovative 3-in-1 eyebrow treatment that promotes the look of fuller, denser, more defined eyebrows in as little as 4 weeks.¹ This clear grooming gel-serum and microbristle doe-foot applicator also precisely sculpts brows without stiffness. Formulated with an innovative peptide to help reduce the appearance of new greys.² Ophthalmologist and dermatologist tested.