Obagi Medical Nu-Cil Eyelash Enhancing Serum 0.1 oz — Biotin + NouriPlex for Thicker, Defined Lashes

Obagi Nu-Cil Eyelash Enhancing Serum is a daily lash serum formulated with NouriPlex Technology and biotin to help nourish lashes for a thicker, more defined appearance over time.

Obagi Medical created Nu-Cil to support the anagen (growth) phase of the eyelash cycle using a targeted blend of ingredients that condition and fortify lashes. The lightweight 0.1 oz formula is intended for daily application at the lash line and combines biotin with lipid compounds, sodium hyaluronate, and panthenol to improve visual fullness and definition without heavy residues. It has been dermatologist and ophthalmologist tested and was evaluated in a blinded clinical study to assess visible improvements over a 16-week period.

How does Nu-Cil work to make lashes look fuller?

Nu-Cil focuses on nourishing hair during the growth phase rather than altering a biological cycle. Its NouriPlex Technology delivers conditioning actives like biotin and panthenol to the lash base, while lipid compounds help maintain the lash surface. Together these ingredients support healthier-looking lashes that appear thicker and better defined when used consistently.

• Targets anagen (growth) phase to support lash condition
• Biotin and panthenol improve lash texture and manageability
• Lipid compound and sodium hyaluronate promote surface hydration and smoothness
• Daily application builds visible change over weeks

What results can I expect, and how long until I see them?

Results develop gradually as lashes complete their natural growth cycles; many users notice visible change with consistent use over several weeks. In a blinded 16-week study, a high percentage of participants reported improvements in fullness and density. Individual timing varies based on natural cycle and baseline lash condition.

• Clinical study assessed changes at 16 weeks
• Visible improvement typically accumulates week by week
• Consistency is key—daily night or morning application recommended
• Complementary care (gentle cleansing, minimal rubbing) helps protect results

Is Nu-Cil safe for sensitive eyes and contact lens wearers?

Obagi Nu-Cil is dermatologist- and ophthalmologist-tested and formulated to be gentle for many users, including those who wear contacts. As with any product applied near the eye, start with a small amount and discontinue if irritation occurs. If you have a history of eye sensitivities or recent procedures, consult your eye care professional before beginning any new lash treatment.

• Ophthalmologist-tested and dermatologist-tested formulation
• Designed for application at the lash line, not inside the eye
• Stop use and seek care if irritation or adverse reaction appears
• Consult a physician if you have recent ocular procedures or severe sensitivities

How do I apply Nu-Cil for best results?

Apply Nu-Cil once daily to clean, dry skin along the upper lash line using the applicator brush. A thin line at the base of the lashes is sufficient—avoid getting product directly into the eye. Regular use and gentle lash care complement the serum’s conditioning effects.

• Apply to upper lash line on clean, dry skin once daily
• Use a single thin stroke at the base of lashes with the applicator
• Avoid direct eye contact; blot away excess if needed
• Remove eye makeup before applying and maintain gentle cleansing habits

Who is this for: Obagi Nu-Cil Eyelash Enhancing Serum is intended for adults seeking to improve the visual thickness and definition of their natural lashes through a conditioning, daily topical treatment. It's suited to those who prefer a physician-tested, lightweight formula and are committed to consistent application for gradual, natural-looking improvement.

Ingredients

Water (Aqua), Dehydrolatanoprost, Biotin, Panthenol, Sodium Hyaluronate, Phenoxyethanol, C12-15 Alkyl, Benzoate, Caprylyl Glycol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Alcohol, Sodium Hydroxide, Phenethyl Caffeate