Obagi Nu-Cil Nourishing Eyebrow Boosting and Thickening Serum is a nourishing eyebrow enhancing and thickening serum developed to address the appearance of thinning, patchy, and over-tweezed brows. Suitable for normal-to-oily, normal-to-dry, and combination skin types, this dermatologist-tested formula is powered by NouriPlex Technology, a clinically proven blend of ingredients designed to improve the appearance of fuller, thicker, and darker-looking eyebrows. The targeted formula helps support a healthier-looking brow appearance while enhancing overall brow density and volume. At the core of the serum is NouriPlex Technology, a unique blend of biotin, panthenol, sodium hyaluronate, and a proprietary lipid compound. These carefully selected ingredients work together to improve the appearance of brows while supporting conditioning and hydration. Biotin helps support the natural production of keratin, while Panthenol, also known as Vitamin B5, helps improve hair conditioning, moisture, and texture. Sodium Hyaluronate, a form of hyaluronic acid, attracts and retains water to help hydrate brows and improve the appearance of thickness and density. The formula also contains a proprietary lipid compound that helps address the appearance of patchy and over-tweezed eyebrows, contributing to a fuller and more uniform-looking brow appearance. With continued use, brows appear denser, thicker, and more defined. Clinical and consumer perception results demonstrated significant improvements in brow appearance. After eight weeks, 100% of participants reported improvement in brow fill, while 96% reported improvement in brow density and volume. Additionally, 94% reported improvement in the appearance of brow thickness, and 85% reported improvement in the overall healthy appearance of their brows. Obagi Nu-Cil Eyebrow Boosting Serum delivers targeted care for achieving fuller-looking, healthier-appearing eyebrows.