Plume Hair & Lash Science has garnered positive feedback from users. Many customers appreciate the dramatic results achieved with their products, noting that 97% of test subjects reported increased length and density of lashes and brows. Users have observed noticeable results in just 17 days. The Nourish & Amplify Mascara is praised for its natural look, lack of clumping, and smudge-free wear. The Nourish & Set Brow Gel is highlighted for keeping brows perfect throughout the day and making them look fuller. The Nourish & Define Brow Pencil is favored for its ease of use, natural-looking strokes, and long-lasting color. Overall, customers are impressed with the effectiveness and quality of Plume's products.