Obagi Medical Nu-Cil Eyelash Enhancing Serum & Eyebrow Boosting Serum Set — Clinically Studied, For Fuller Lashes & Brows (2-Pack)

Obagi Nu-Cil Eyelash Enhancing Serum & Eyebrow Boosting Serum set visibly supports fuller-looking lashes and denser-looking brows with a clinically studied blend of ingredients.

These two targeted serums combine Obagi's NouriPlex Technology to nourish hair where it grows, aiming to enhance the appearance of eyelashes and eyebrows over a treatment course. Formulated for daily use, the pair is dermatologist-tested and created to integrate into morning or evening routines without disrupting other skincare steps.

How quickly will I notice changes to my lashes and brows?

Clinical testing in a controlled study showed visible improvements beginning around eight weeks, with more pronounced results by twelve weeks. Individual responses vary depending on hair cycle and consistent application.

• Visible improvements observed as early as 8 weeks in study data
• Stronger, more defined lash appearance builds with continued use
• Fuller-looking brows become more apparent by week 12

How should I apply each serum for best results?

Apply the eyelash serum along the upper lash line once daily using the included applicator; use the eyebrow serum to trace sparse areas of the brow. Clean, dry skin ensures the formulas absorb effectively without interfering with makeup.

• Use on clean, makeup-free lashes and brows
• Apply a thin line to the upper lash base and to sparse brow sections
• Allow to dry before layering other products or makeup

Are these serums suitable for sensitive skin or professional users?

Both formulas are dermatologist-tested and formulated for compatibility with a range of skin types. Professionals trust Obagi for clinical-grade ingredients, and many users with sensitivity can incorporate these serums, though patch testing is recommended.

• Dermatologist-tested ingredients designed for gentle daily use
• Physician-endorsed brand background and formulation standards
• Patch test on a small area if you have highly reactive skin

Can these serums replace makeup or salon treatments?

They are designed to improve the natural appearance of lashes and brows over time rather than act as an immediate cosmetic stand-in. While results can reduce reliance on heavy cosmetics, serums work best as a complement to grooming and styling routines.

• Enhances natural hair appearance; not an instant tint or volumizer
• Works alongside brow grooming, tinting, and lash care habits
• Supports longer-term visual improvements rather than temporary coverage

Who is this for: The Obagi Nu-Cil serum set is aimed at anyone seeking to amplify the natural look of their lashes and brows—those dealing with thinning, patchiness, or simply wanting more defined, face-framing hair. It suits daily skin routines for people who prefer science-backed, dermatologist-tested products and professional-grade formulations. If you want a targeted, at-home regimen to support thicker-looking lashes and fuller-looking brows over several weeks, this duo offers a convenient, research-informed option.

• Achieve face-defining lashes and brows with Obagi's NouriPlex Technology, a clinically studied blend shown to enhance eyebrow and eyelash appearance in as little as 8 weeks of consistent use.
• Nourishes lashes for a thicker, more defined look by targeting hair growth phases to build visible results over time.
• Addresses thinning, patchy, or over-tweezed brows by accentuating the healthy look of eyebrows to appear fuller and denser with continued application.
• Dermatologist-tested and physician-endorsed formulations from a brand with over 35 years of clinical skincare experience.