Obagi Medical Nu-Cil Eyebrow Boosting Serum 0.17 oz — Biotin & Hyaluronic Acid for Fuller, Nourished Brows

Obagi Nu-Cil Eyebrow Boosting Serum is a lightweight, daily brow serum formulated with Biotin, Sodium Hyaluronate, Panthenol and Obagi’s NouriPlex technology to help brows look fuller and healthier.

This nourishing eyebrow treatment targets thinning, sparse, and over-plucked brows with a blend of conditioning and fortifying ingredients designed for daily use. The formula combines biotin to support visible brow thickness, sodium hyaluronate for hydration, and panthenol for smoothing, all delivered through Obagi’s NouriPlex system. Clinically evaluated consumer testing has shown measurable improvements in brow density, fill, and overall healthy appearance when used consistently over several weeks.

How soon will I notice changes in my eyebrows?

Visible differences in brow fill and density typically appear after consistent daily use for several weeks. Many participants in Obagi studies reported improvements around the eight-week mark, with more pronounced results by twelve weeks.

• Expect initial cosmetic change in about 6–8 weeks with daily application.
• More noticeable enhancements in volume and fill often appear by 12 weeks.
• Continue use to maintain the hydrated, conditioned look.

What key ingredients make this serum work?

The formula relies on NouriPlex technology, a targeted combination of four actives that support the appearance of fuller brows. Biotin helps give the look of thicker hair, sodium hyaluronate delivers moisture, panthenol conditions and smooths, and a lipid compound helps fortify hair fibers.

• Biotin: helps improve visible brow thickness and body.
• Sodium Hyaluronate: hydrates and plumps hair and skin around the brow.
• Panthenol: conditions and reduces the look of dryness.
• Lipid compound: supports hair fiber structure and appearance.

How do I apply the serum for best results?

Use the serum once daily on clean, makeup-free brows to allow optimal absorption. Apply the formula along the brow line and areas of thinning, using the applicator to distribute evenly; gentle nightly use helps build visible improvements over time.

• Start with clean, dry brows — remove makeup and oils first.
• Apply a thin layer along the entire brow and any sparse patches.
• Use consistently each day; store at room temperature and avoid eye contact.

Who is this for: Obagi Nu-Cil Eyebrow Boosting Serum is suited for people with naturally thin brows, those recovering from over-tweezing, or anyone wanting a conditioned, fuller-looking brow appearance without makeup. It’s formulated to complement professional skincare routines and is dermatologist tested; anyone with sensitivity concerns should patch-test or consult a skincare professional before use.