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Obagi Nu-Cil™ BioStim Scalp Serum

2.0 fl oz
| HSA|FSA Eligible LMN Required
$125.00

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Highlights
  • Good for all hair types
  • Promotes thicker hair
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Product Overview

Obagi Nu-Cil™ BioStim Scalp Serum helps strengthen hair and improve scalp health.

Made with a proprietary BioStim™ Complex containing peptides, amino acids and biotin, this scalp serum helps redensify hair and promote a healthy scalp. It targets hair at the root to improve hair's strength while visibly improving thickness and density.

Key Features:

  • Visibly improves hair density and thickness
  • Promotes scalp health and strengthens hair
  • Suitable for all hair types

Highlights

  • Good for all hair types
  • Promotes thicker hair
  • Improves scalp health

Ingredients

Directions

Shipping & Returns

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Return Policy: This product is non-returnable

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ORM-D classified products such as aerosol sprays, nail polish, perfume and products with high alcohol content may only be shipped using a ground method within the Continental US.

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Product Specifications

About the Brand

Customer Reviews (15)

Overall Rating

4.2
Based on 15 reviews

Review Summary

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15 Reviews

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LovelySkin Customer

from Florida

Age Group: 60-69

Verified Purchase

February 18, 2026

Very good serum

I’ve been using this serum for a few weeks now. It does not make hair greasy, it’s very easy to use and I’m seeing new growth around my temples. So far it’s my favorite serum and I’ve tried quite a few

0 people found this helpful

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LovelySkin Customer

from New Hampshire

Age Group: 30-39

Curly, Dry Hair

Dry Skin

Verified Purchase

February 16, 2026

Haven't used it long enough...

I really love how it feels on my scalp and applying is easy and smooth. I will continue to use and see if I benefit with any results.

0 people found this helpful

Profile picture of Krissy.

Krissy

from Illinois

Age Group: 50-59

Straight Hair

Normal Skin

Verified Purchase

January 27, 2026

Seems to be working. I have tried so many. Feeling good about this

I have tried everything with moderate success. This one seems to be the best. Often, i would skip other brands because they made my hair limp and greasy. Not with this onr. I use daily and i like. Will order again. Big bottle! Not stingy

1 person found this helpful

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Barbcost

Straight, Color treated hair

Dry Skin

Verified Purchase

January 26, 2026

It’s working!

I’ve been using this serum every night for three months now and seeing results. My hair was thinning in the front and I wear bangs which weren’t looking good, but after using - maybe I missed a day or two but no more than that - the hair is really growing in nicely. I also take a supplement for over two years, but this has helped tremendously.

1 person found this helpful

Profile picture of Desi.

Desi

Verified Purchase

January 22, 2026

Horrible!

This made my scalp itch really bad and made my hair feel wiry and dry and hard! I wanted to rip my hair out! My scalp just did not stop itching then I developed some pus like bumps in my head! I had to wash my hair with 2 different types of shampoos to try and rebalance my scalp .

0 people found this helpful

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VeraO

from North Carolina

Age Group: 50-59

Wavy Hair

Verified Purchase

January 15, 2026

Less shedding…

I have long course hair. I was noticing more shedding recently. Not sure why but alas, I thought I would give this a go and try it. I have noticed less shedding. I use the hair serum along with the a red light therapy brush from a different brand. I’m going to stick with it and hopefully continue to see improvement.

1 person found this helpful

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gotogirl

from New Jersey

Age Group: 60-69

Curly, Color treated hair

Mature Skin

Verified Purchase

January 14, 2026

Great Scalp Serum Without the Grease

Lightweight, non-sticky, and easy to add to a daily routine. A great option if you’re focused on scalp health and strengthening thinning hair.

0 people found this helpful

Profile picture of PatriceCA.

PatriceCA

from Colorado

Age Group: 60-69

Verified Purchase

January 01, 2026

Obagi Scalp Serum Works!!!

I started with the brow and lash serum and moved on to scalp serum. Why didn't I start with this??? When Obagi comes to the hair growth table, you should follow! I've been taking hair growth supplements and trying various hair growth products for years so I can say with experience, Obagi and all their highly paid scientists developed a formula that works!

3 people found this helpful

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LovelySkin Customer

from California

Age Group: 50-59

Straight Hair

Verified Purchase

December 23, 2025

Scalp serums are all the rage!

As we age, so does our hair (along with everything else!). I have been spending more time (and money) on taking care of my scalp. My friend (who specializes in all things beauty) recommended this product and I have been impressed so far. The applicator makes it easy to apply the product right on the roots and while it may make your hair a little damp upon application, but the next morning, hair is dry and not greasy. I have only been using it for a few weeks but my hair seems thicker and has more volume. I am definitely going to keep using this product.

2 people found this helpful

Profile picture of BaseballMom.

BaseballMom

Age Group: 50-59

Verified Purchase

December 07, 2025

Minor improvement

I was hoping to see much more new hair growth after two weeks, but it has been minimal. The formula is not greasy or sticky, so it does absorb well into the scalp. I will stick with it for a little while to see if the product generates more hair growth.

2 people found this helpful

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LovelySkin Customer

from Puerto Rico

Age Group: 40-49

Wavy, Color treated hair

Combination Skin

Verified Purchase

November 28, 2025

Promising Results

I’ve been using this product once a day for a full month and I like what I’m seeing. It gives me volume without stickiness and I also see thinning areas with new baby hairs growing. I have tried other products for hair thinning before, but I felt compelled to write a review about this one, because the others can take months to work. My only complaint is the price, but I find it lasts longer than other products I’ve tried with a lower price. I also wanted to share that I apply the serum on my finger tips, rub the finger tips of both hands together, then apply on my scalp, focusing on my thinning areas.

4 people found this helpful

Profile picture of Bluzegirl.

Bluzegirl

Verified Purchase

November 15, 2025

Great serum!

This serum is so easy to apply. It leaves no residue behind. No smell at all. I use it each night. It has been only a few weeks and I’m seeing some baby hairs at the temple area which is my primary area of concern. Obagi is a trusted brand for results!

2 people found this helpful

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LovelySkin Customer

from Alabama

Age Group: 60-69

Curly Hair

Combination Skin

Verified Purchase

November 12, 2025

Some New Growth

I have been using this product for about 3 weeks now and I have noticed some sprigs of new growth about 3/4 of an inch on the top of my head and around the hairline and temple area. I really need some new growth on the sides as well, but not seeing it yet. I have very high hopes that very soon I will see new growth in this area. When I do, I will enter a new review. So for now, i am very happy with the product and will keep using it. Thank you Obagi for this product!

1 person found this helpful

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LovelySkin Customer

from Utah

Verified Purchase

November 05, 2025

Obagi Nu-Cil

I haven't used it long enough to know if it will do what it says it will, however, it does leave the hair a bit sticky so best used just after washing rather than on dry hair. Hoping it does some good....

3 people found this helpful

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LovelySkin Customer

from Michigan

Verified Purchase

November 04, 2025

Haven’t used long enough to notice

I have not been using long enough to see a difference. Although, I do like that I can apply morning and/or night and it doesn’t not affect the condition of my hair or scalp. It’s totally scent free and very light weight. I’ll update after I use the tube to see if I had any new growth.

2 people found this helpful

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