BIOSTIM™ SCALP SERUM
BIOSTIM™ SCALP SERUM
BIOSTIM™ SCALP SERUM
BIOSTIM™ SCALP SERUM
BIOSTIM™ SCALP SERUM
BIOSTIM™ SCALP SERUM
BIOSTIM™ SCALP SERUM
BIOSTIM™ SCALP SERUM
BIOSTIM™ SCALP SERUM
BIOSTIM™ SCALP SERUM
BIOSTIM™ SCALP SERUM
BIOSTIM™ SCALP SERUM
NEW
4.3
Rated 4.3 out of 5 stars
28 Reviews
OBAGI NU-CIL® ,

BIOSTIM™ SCALP SERUM

Hair Density Scalp Serum

$125.00
Excluded from all Discounts
BIOSTIM™ SCALP SERUM

BIOSTIM™ SCALP SERUM

Free & Easy Returns

Best for
Skin Types: Normal to OilyNormal to DryCombination

Obagi Nu-Cil BioStim Scalp Serum promotes optimal scalp health and fortifies hair follicles for visibly denser, fuller hair. Powered by clinically proven actives, the BioStim™ Complex targets key factors that influence scalp health and hair resilience, delivering a comprehensive, root-level approach to hair revitalization.

  • Hydrates, soothes, repairs, and balances the scalp to create an optimal environment for hair growth
  • Strengthens, nourishes, protects hair follicles and boosts circulation as you massage the scalp for visibly fuller, denser hair

In less than 6 months, clinically proven* to:

  • Significantly improve hair volume by 52%**
  • Significantly reduce scalp redness by 29%**
  • Significantly reduce scalp oiliness by 22%**

*Results based on a 2025 24-week clinical test. Data on file at Obagi Cosmeceuticals LLC.
**When compared to the untreated control group.

Backed By Clinical Trials

97%
reduction in the amount of dry fallen hair after 24 weeks*
74%
increase in scalp hydration after 24 weeks*
90%
of participants agreed their hair looked healthier after 24 weeks*
90%
of participants agreed the serum reduced hair breakage after 24 weeks*
Baseline* After 12 Weeks*
*Results based on a 2025 24-week clinical test. Photos have not been retouched. Individual results may vary. Data on file at Obagi Cosmeceuticals LLC. **When compared to the untreated control group.
Baseline After 12 weeks*
*Results based on a 2025 24-week clinical test. Photos have not been retouched. Individual results may vary. Data on file at Obagi Cosmeceuticals LLC. **When compared to the untreated control group.
Baseline After 12 weeks*
*Results based on a 2025 24-week clinical test. Photos have not been retouched. Individual results may vary. Data on file at Obagi Cosmeceuticals LLC. **When compared to the untreated control group.
Baseline After 12 weeks*
*Results based on a 2025 24-week clinical test. Photos have not been retouched. Individual results may vary. Data on file at Obagi Cosmeceuticals LLC. **When compared to the untreated control group.

How To Use

  • Apply serum once daily. Part hair and dispense directly onto the scalp. Gently massage with fingertips to ensure even distribution and boost circulation. Can be applied to either dry or damp hair. Do not rinse.
  • Can be applied in the morning or at night. Allow serum to absorb fully and air-dry completely. This is a leave-in product, style your hair as usual. Apply daily for best results.



Storage

  • Keep out of direct sunlight.
  • Store at controlled room temperature 15°−25°C (59°−77°F).
4.3
Rated 4.3 out of 5 stars
Based on 28 reviews
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28 reviews
  • Beth
    I recommend this product
    Rated 5 out of 5 stars
    April 14, 2026
    5 Stars

    Works great

    Was this helpful?
  • Mrs. G.
    FL, United States
    Verified Buyer
    I recommend this product
    Age 55-64
    Gender Female
    Rated 5 out of 5 stars
    March 30, 2026
    The BEST

    I’m 58 years old, female and I’ve never experienced such an amazing product. I started this product on March 17. 2026 and I haven’t reached a month yet and I see sprouts of hair coming out of my scalp where no hair follicles existed for years after hair loss due to GLP1 medication and severe weight loss. I’m one happy young lady and love Obagi!

    EffectivenessRated 5.0 on a scale of 1 to 5
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  • Paula E.
    GA, United States
    Verified Buyer
    I recommend this product
    Age Over 65
    Gender Female
    Rated 5 out of 5 stars
    March 28, 2026
    Good!

    It seems to work well.

    EffectivenessRated 5.0 on a scale of 1 to 5
    Was this helpful?
  • Betty C.
    UT, United States
    Verified Buyer
    I recommend this product
    Age Over 65
    Gender Female
    Rated 5 out of 5 stars
    March 24, 2026
    Betty

    Kind of expensive

    EffectivenessRated 3.0 on a scale of 1 to 5
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  • Bethany B.
    LA, United States
    Verified Buyer
    I recommend this product
    Age 55-64
    Gender Female
    Rated 5 out of 5 stars
    March 17, 2026
    Wonderful product

    Have been using for a month and I am noticing new growth

    EffectivenessRated 5.0 on a scale of 1 to 5
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