Obagi Medical Nu-Cil Eyelash Enhancing Serum — 0.1 oz Pack of 2, Biotin + Hydrating NouriPlex Formula for Thicker-Looking Lashes

Obagi Nu-Cil Eyelash Enhancing Serum is a physician-developed lash treatment formulated with Biotin and NouriPlex Technology to support the appearance of thicker, more defined lashes over time.

This lash serum is designed to work with the natural lash growth cycle, delivering targeted nourishment to the anagen (growth) phase so you can see cumulative improvement with daily use. The formula combines Biotin with a lipid complex, sodium hyaluronate and panthenol to hydrate, strengthen and condition lashes without heavy residues. Clinically tested and both dermatologist- and ophthalmologist-reviewed, Nu-Cil is presented in a convenient 0.1 oz bottle; this listing includes a two-pack for extended treatment or to keep a spare where you need it.

How does Nu-Cil support lash appearance?

Nu-Cil focuses on supplying supportive ingredients during the lash growth phase to help lashes look fuller and better defined. Instead of forcing immediate thickening, it aims to improve lash quality so visible changes build with continued use.

• Biotin to support keratin structure and hair-like strength.
• Lipid compound to help retain moisture along the lash shaft.
• Sodium hyaluronate for lightweight hydration and smoother texture.
• Panthenol (pro-vitamin B5) to condition and add bounce.

When will I notice results and how should I apply it?

Individual timing varies, but clinical data reported visible improvements for most participants within several weeks and continued gains over a 16-week period. Apply once nightly to clean, dry lash lines using the included applicator for best consistency and uninterrupted absorption during sleep.

• Use nightly on upper and lower lash lines after removing makeup.
• Apply a thin line—one stroke per lash line is sufficient.
• Allow product to dry before applying other products or eyelash cosmetics.
• Discontinue use if irritation develops and consult a physician.

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

Nu-Cil has been dermatologist- and ophthalmologist-tested, and it’s formulated to minimize irritation while still delivering active ingredients. Many users with sensitive eyes tolerate the serum, but those with a history of ocular sensitivity should introduce it cautiously and monitor for reactions.

• Ophthalmologist-reviewed formula designed for eyelid application.
• Tested on a variety of skin types and tones.
• Suitable for use while wearing contact lenses after initial irritation check.
• If irritation or unusual redness occurs, stop use and seek advice.

What makes NouriPlex Technology different?

NouriPlex is Obagi’s proprietary blend that combines four complementary actives chosen for their supportive roles in lash conditioning and appearance. The blend is calibrated to be lightweight yet effective for daily eyelash application, prioritizing conditioning and visible texture improvements rather than aggressive chemical alteration.

• Combines Biotin, a lipid compound, sodium hyaluronate and panthenol.
• Targets moisture balance and structural support for lashes.
• Formulated for consistent, buildable results over weeks.
• Backed by clinical participant feedback collected by Obagi Cosmeceuticals.

Who is this for: Obagi Nu-Cil Eyelash Enhancing Serum is suited for adults seeking a physician-backed, conditioning approach to improve the look and feel of natural lashes. It’s a good choice if you want gradual, cumulative improvement with a product tested by dermatology and ophthalmology professionals. If you have a history of eyelid sensitivity or are pregnant or nursing, consult your healthcare provider before starting any new eyelid treatment.