Eyebrow Emporium Leading Role Brow Enhance Serum (5ml) is packed with brow boosting peptides. This serum is clinically proven to enhance brow density by up to 72%! Formulated using a complex blend of conditioning actives and multivitamins to create strong and healthy brows. For visibly fuller-looking brows, look no further than Leading Role Brow Enhance Serum by Eyelash Emporium. For fuller, thicker & stronger brows. Easy to use. Made in the UK. Clinically proven to enhance brow density by up to 72%.