Obagi Medical Nu-Cil BioStim Hair Scalp Serum, 2 oz — Lightweight biotin formula for fuller, stronger hair

Obagi Nu-Cil BioStim Hair Scalp Serum is a lightweight, biotin-enriched topical serum designed to improve scalp condition and support the appearance of fuller, stronger hair.

This clinically-tested, dermatologist-trusted formula combines biotin, peptides, and amino acids in Obagi’s BioStim Complex to nourish follicles and help create an environment that supports hair density and resilience. The 2 oz pump delivers a non-greasy, fast-absorbing liquid that’s safe for color-treated hair and designed for daily application to dry or damp scalps.

How does this serum support a healthier scalp and hair appearance?

The serum is formulated to condition the scalp and fortify individual hairs at the root level. Ingredients in the BioStim Complex target scalp comfort and follicle strength, which can translate into visibly denser-looking hair over time when used consistently.

• BioStim Complex with biotin, peptides, and amino acids for follicle support
• Lightweight, non-greasy texture absorbs quickly without residue
• Safe for all hair types and color-treated hair

How should I use it in my daily routine for best results?

Apply once daily directly to the scalp on dry or damp hair and gently massage to distribute the serum and stimulate circulation. Do not rinse; allow it to absorb and air-dry fully before styling to preserve its fast-absorbing benefits.

• Part hair and apply to affected or full scalp area
• Use fingertips to massage for even coverage and mild stimulation
• Leave on—do not wash out; compatible with styling products

What makes this product suitable for different hair and scalp types?

The formula is dermatologist-tested and created to be gentle yet effective across a range of scalp conditions and hair textures. Its residue-free finish and color-safe profile make it appropriate for chemically treated hair as well as natural hair types.

• Clinically tested on various hair and scalp types
• Non-greasy and fast-absorbing—won’t weigh hair down
• Residue-free and color-safe for treated hair

When will I notice visible differences and how do I measure progress?

Visible changes depend on consistent daily use and individual hair cycles; many users report improvements in scalp comfort and the look of thicker hair after several weeks. Track progress with photos and by noting reduced fallout and fuller-looking sections over time.

• Use daily for sustained results; timelines vary by person
• Photograph the scalp monthly for visual comparison
• Combine with gentle scalp care to maximize outcomes

Who this is for: Obagi Nu-Cil BioStim Hair Scalp Serum is intended for people seeking a clinically tested, non-greasy topical treatment to support scalp condition and the appearance of fuller, stronger hair. It’s suitable for men and women with all hair textures, including color-treated hair, who want a dermatologist-tested formula to integrate into a daily hair-care routine.