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

Obagi Nu-Cil Eyebrow Boosting Serum is a targeted brow serum formulated with Biotin, Sodium Hyaluronate, Panthenol and Obagi's NouriPlex Technology to visibly improve the look of thinning, patchy, or over-tweezed eyebrows.

If you want fuller-looking brows without heavy makeup, this concentrated 0.17 oz serum from Obagi Medical is designed to enhance brow density and fullness over time. The formula combines conditioning and hydrating actives to support the appearance of healthier brows while fitting into morning or evening routines. Clinical consumer testing reported visible improvements in brow fill, density and overall healthy appearance within 8–12 weeks when used as directed.*

How quickly can I expect to see results with Nu-Cil?

Results vary, but consumer studies indicate visible changes as early as eight weeks, with more noticeable improvements by twelve weeks. Consistent daily application is essential to reproduce study outcomes.

• Visible improvement reported by many participants at 8 weeks
• More pronounced density and fullness around 12 weeks
• Apply once daily according to instructions for best consistency

What key ingredients make this serum effective for brows?

Obagi Nu-Cil uses a multi-ingredient approach called NouriPlex Technology that combines conditioning, strengthening, and hydrating molecules to support the brow's appearance. Ingredients were selected to work together for improved texture and visible fill.

• Biotin: supports the appearance of fuller, healthy-looking hair
• Sodium Hyaluronate: hydrates and helps brows appear smoother
• Panthenol (Provitamin B5): conditions and adds softness to brow hairs
• Lipid compound: helps support hair fiber integrity and manageability

How do I use the serum safely and effectively?

Apply as directed to clean, dry brow area once daily. Use the applicator to target sparse zones and allow the serum to dry before applying other products or makeup. Avoid contact with eyes and discontinue if irritation occurs.

• Cleanse the brow area before application
• Use the provided applicator for precise placement
• Allow serum to dry fully before layering cosmetics
• Cease use and consult a professional if persistent irritation appears

What evidence supports Obagi Nu-Cil’s claims?

Obagi cites a 2022 blinded consumer study showing improvements in brow density, fill and overall healthy appearance after regular use. The brand also emphasizes dermatologist testing and physician endorsement across its product line.

• Consumer study data on file at Obagi Cosmeceuticals LLC
• Dermatologist tested and physician endorsed formulation
• Backed by Obagi’s decades-long skincare research heritage

Who is this for: Obagi Nu-Cil Eyebrow Boosting Serum is suited to anyone with thinning, patchy, over-plucked or sparse brows who wants a routine-friendly topical option to improve the brows’ appearance. It fits into everyday skincare regimens for users seeking cosmetic improvement in brow fullness without makeup-based solutions. Not appropriate for those with known ingredient sensitivities; consult a dermatologist if you have concerns about product compatibility with medical conditions or treatments.

*Study details: outcomes referenced are from internal consumer testing. Individual results will vary based on usage and individual factors.