Hubba Brow serum improves the appearance of brow volume in just 4 weeks and shows fuller-looking brows at 12 weeks. The gentle formula contains a custom blend of vitamins, plant extracts and rice protein, is suitable for sensitive skin, and feels comfortable on brows. Brows look healthier, natural, and nourished over time. Plus, the wand features a flexible microbristle tip..Suitable for sensitive skin.Cruelty-free.4.5 g.Apply nightly to clean, dry brows. Let dry before applying skincare products..Turn up the volume with Gimme Brow + volumizing fiber gel (sold separately).