Obagi Nu-Cil® BioStim™ Scalp Serum

Obagi Nu-Cil® BioStim™ Scalp Serum extends the Nu-Cil franchise from lashes and brows to the scalp, targeting thinning hair at the root. Powered by the proprietary BioStim™ Complex — a blend of biotin, amino acids, peptides, and 18 additional hair-supporting nutrients including caffeine, panthenol, niacinamide, and ginseng root extract — this leave-in serum hydrates, soothes, and rebalances the scalp to create an optimal environment for hair growth, while strengthening and protecting follicles from within. In a 24-week clinical study, 90% of participants reported reduced hair breakage.

Key Benefits

• BioStim™ Complex delivers 18+ clinically studied hair nutrients directly to the scalp
• Hydrates, soothes, and rebalances the scalp environment to support healthy hair growth
• Strengthens and protects hair follicles, boosting circulation with massage application
• Clinically shown to reduce hair breakage over 24 weeks (90% of participants)
• Lightweight, fragrance-free, leave-in formula suitable for all hair types

Skin Type & Concerns

Skin Type: All Skin Types

Addresses: Thinning hair, scalp health, hair density/fullness

How To Use

Apply once daily, morning or evening, to dry or damp hair. Part hair and dispense directly onto the scalp, massaging gently with fingertips to distribute and boost circulation. Allow to fully absorb and air-dry before styling. Leave in — do not rinse.

Key ingredients

• BioStim™ Complex — Obagi's proprietary blend of biotin, amino acids, and peptides formulated to strengthen follicles and support scalp health
• Caffeine & Panthenol (Provitamin B5) — support circulation and scalp conditioning
• Niacinamide (Vitamin B3) & Ginseng Root Extract — round out the nutrient blend supporting a healthy scalp environment