Complex Peptide Lash Growth Serum + Eyebrow Serum SetWhat it does A combination of the world's most sophisticated peptide based Eyelash and Eyebrow Serums which work to provide longer, stronger and fuller looking lashes and brows. Why it's special Their clinically proven formulas include more peptides than any other lash and brow serum on the market. Pea Peptides, Hexapeptide 8, and Copper Tripeptide 1 all help to stimulate growth from the root and promote collagen and elastin in the hair follicle,