Customers say this lash and brow serum makes their lashes feel softer and fuller, with visible growth appearing within two to four weeks of use. Many appreciate the smooth application and pleasant texture. Common feedback includes improved hydration and thickness, with some noticing fuller eyebrows and regrowth in sparse areas. A few users report no noticeable changes, and some mention oily residue the next day. Overall, most reviewers are satisfied with results and plan to repurchase.