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Bring back the brows you love. Obagi Nu-Cil Eyebrow Boosting Serum is a professional-grade treatment specifically designed to address thinning, patchy, or over-tweezed eyebrows. While many brow products simply tint the hair you already have, Nu-Cil works at the root to support the appearance of thicker, denser, and more defined brows.
Powered by the same proprietary NouriPlex Technology found in our best-selling lash serum, this formula delivers a complex blend of four key ingredients that nourish the brow area and target the growth phase of the hair cycle.
Bolder Brows: Clinically proven to improve brow volume and density for a more youthful, framed look.
Fills in Gaps: Targets sparse or patchy areas to create a more uniform, "filled-in" appearance without the need for makeup.
Conditions & Strengthens: Protects existing brow hairs from breakage while softening coarse texture.
Precision Application: Features a custom-designed brush that delivers the perfect amount of serum exactly where you need it.
Visible Results: Users typically see a noticeable transformation in brow fullness in as little as 8 weeks.
Biotin: The essential B-vitamin that supports natural keratin production for thicker-looking hair.
Proprietary Lipid Compound: Targets the "anagen" phase of the brow cycle to encourage a more robust appearance.
Sodium Hyaluronate: A powerful humectant that hydrates the brow hairs and the skin beneath them.
Panthenol (Vitamin B5): A deep conditioner that improves hair flexibility and shine.
For Best Results: Apply once daily in the evening to clean, dry skin.
Prep: Ensure your eyebrows are free of makeup, oils, and skincare products.
Apply: Using the applicator brush, apply the serum directly to the skin of the eyebrow root and along the entire brow line.
Absorb: Allow the serum to dry completely (about 90 seconds) before applying any other products or going to sleep.
Pro Tip: If you have particularly sparse areas, focus your application there first to ensure maximum absorption.
Bring back the brows you love. Obagi Nu-Cil Eyebrow Boosting Serum is a professional-grade treatment specifically designed to address thinning, patchy, or over-tweezed eyebrows. While many brow products simply tint the hair you already have, Nu-Cil works at the root to support the appearance of thicker, denser, and more defined brows.
Powered by the same proprietary NouriPlex Technology found in our best-selling lash serum, this formula delivers a complex blend of four key ingredients that nourish the brow area and target the growth phase of the hair cycle.
Bolder Brows: Clinically proven to improve brow volume and density for a more youthful, framed look.
Fills in Gaps: Targets sparse or patchy areas to create a more uniform, "filled-in" appearance without the need for makeup.
Conditions & Strengthens: Protects existing brow hairs from breakage while softening coarse texture.
Precision Application: Features a custom-designed brush that delivers the perfect amount of serum exactly where you need it.
Visible Results: Users typically see a noticeable transformation in brow fullness in as little as 8 weeks.
Biotin: The essential B-vitamin that supports natural keratin production for thicker-looking hair.
Proprietary Lipid Compound: Targets the "anagen" phase of the brow cycle to encourage a more robust appearance.
Sodium Hyaluronate: A powerful humectant that hydrates the brow hairs and the skin beneath them.
Panthenol (Vitamin B5): A deep conditioner that improves hair flexibility and shine.
For Best Results: Apply once daily in the evening to clean, dry skin.
Prep: Ensure your eyebrows are free of makeup, oils, and skincare products.
Apply: Using the applicator brush, apply the serum directly to the skin of the eyebrow root and along the entire brow line.
Absorb: Allow the serum to dry completely (about 90 seconds) before applying any other products or going to sleep.
Pro Tip: If you have particularly sparse areas, focus your application there first to ensure maximum absorption.