Obagi Medical Nu-Cil BioStim Hair Scalp Serum 2 oz — Biotin + Peptides for Fuller, Stronger Hair

Obagi Nu-Cil BioStim Hair Scalp Serum is a lightweight, fast-absorbing, clinician-tested serum that promotes scalp health and helps deliver visibly fuller, denser hair.

If you’re looking for a science-backed topical to support scalp circulation, strengthen follicles, and encourage regrowth without greasy residue, this Obagi Medical formula was developed for that purpose. The Nu-Cil BioStim Serum blends biotin, peptides, and amino acids in a proprietary BioStim Complex designed to revitalize the scalp environment, and it’s tested on all hair and scalp types. It’s color-safe, quick to absorb, and formulated to leave no visible residue, making it suitable for daily use in routine hair care.

How does this serum support scalp health and hair density?

The serum targets the scalp environment rather than hair strands alone. Key actives in the BioStim Complex work to nourish follicles, soothe skin, and bolster the structures that help hair appear fuller and stronger.

• BioStim Complex: biotin, peptides, and amino acids to support follicle vitality
• Clinically tested to promote circulation and scalp health
• Lightweight hydration that avoids oiliness or visible residue
• Formulated for all hair and scalp types, including treated or colored hair

What’s the best way to apply the serum for consistent results?

Application is simple: part your hair, apply directly to the dry or damp scalp once daily, and massage with your fingertips. Do not rinse—allow the serum to absorb and air-dry to let the actives work on the scalp uninterrupted.

• Use once a day on dry or damp scalp for even coverage
• Massage gently to enhance circulation and product distribution
• Leave the serum on; do not rinse to preserve absorption
• Safe to use with color-treated hair and common styling products

Which ingredients are responsible for strengthening follicles?

The formula centers on a proprietary BioStim Complex combining biotin with targeted peptides and amino acids. These components help fortify hair at the root level and create a more favorable environment for thicker-looking growth.

• Biotin: supports keratin structure associated with hair strength
• Peptides: help reinforce follicle-supporting proteins
• Amino acids: provide building blocks for healthier-looking hair
• Non-greasy delivery system ensures active penetration without residue

Is this product dermatologist tested and suitable for everyday use?

Yes — the serum is dermatologist-tested and clinically evaluated across hair and scalp types. Its formulation prioritizes tolerability, making it appropriate for regular, everyday application alongside standard hair care routines.

• Dermatologist tested and physician endorsed formulation
• Non-greasy, fast-absorbing texture for daily wearability
• Color safe for chemically treated hair
• Designed to integrate into professional skincare and haircare regimens

Who is this for? Obagi Nu-Cil BioStim Hair Scalp Serum is aimed at men and women who want a clinically developed, easy-to-use topical to improve scalp condition and support the appearance of fuller, denser hair. It’s ideal for those seeking a non-greasy, residue-free option compatible with color-treated hair and daily styling routines, and for people who prefer products backed by dermatologist testing and physician endorsement. If you want a targeted serum focused on follicle support and scalp circulation as part of a broader hair-care plan, this 2 oz bottle offers a professional-grade, science-informed choice.