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Cold Processed®

Stem Cell Scalp Serum - 3 Pack

4.7
Rated 4.7 out of 5 stars
1,407 Reviews
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A 3-month supply of our best-selling, lightweight treatment for hair thinning— thicker, fuller-looking hair in 90 days.

+ Day 30: Scalp will feel hydrated + balanced
+ Day 60: Visibly less fall out + baby hairs appear
+ Day 90: Hair will feel thicker + fuller

Contains: 3 x 1.0 oz (3 month supply)

Save 30% on Your First Subscription
(All following orders save 20%)
Why You Need This
strengthening
hydrating
balancing
Real User Results
Side-by-side comparison of curly hair: left shows "Before" and right shows "After 6 Months of Use," highlighting improved texture and shine.
Before/After of hair growth when using Act+Acre Stem Cell Scalp Serum
Before/After of hair growth when using Act+Acre Stem Cell Scalp Serum

Save with sets

Three scalp care products from Act+Acre with an Allure Best of Beauty 2024 award badge on a gray background.
Detox Scalp Relief System
Treatment trio to gently exfoliate and nourish the scalp
Learn More
How to use Act+Acre Stem Cell Scalp Serum:

On clean damp or dry hair, apply 1-2 pipettes along the hairline and part. Massage into the scalp. Do not rinse.
post-wash
as needed

Save with sets

Three scalp care products from Act+Acre with an Allure Best of Beauty 2024 award badge on a gray background.
Detox Scalp Relief System
Treatment trio to gently exfoliate and nourish the scalp
Learn More
4.7
Rated 4.7 out of 5 stars
Based on 1,407 reviews
95%would recommend these products
Slide 1 selected
1,407 reviews
  • PD
    Paige D.
    Verified Buyer
    I recommend this product
    What is your main hair goal? I want to grow longer ahir, I want to stop my hair thinning
    Do you experience hair loss? Moderate or gradual hair thinning
    Do you experience any scalp concerns? Sensitivity
    Rated 5 out of 5 stars
    3 days ago
    Love it

    I have been using this serum for just over a month and absolutely love it. I started using it when I began having more shedding than usual. It is definitely helping with the shedding, it does not irritate my sensitive scalp as other scalp serums do, and it does not weigh down my fine hair at all. This will be a new staple in my daily hair routine and I will continue to purchase!

  • IS
    Ina S.
    Verified Buyer
    I recommend this product
    What is your main hair goal? I want to stop my hair thinning
    Do you experience hair loss? Moderate or gradual hair thinning
    Do you experience any scalp concerns? No scalp concerns
    Rated 5 out of 5 stars
    1 month ago
    Regrowth

    Stem cell serum gave me back my hair I am happy to report.

  • C
    Corrine
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    5 Stars

    Only been a week but can honestly say relief crept im from day one - scallp had been feeling tight and itchy without flakes for about a year . This is the third product of its type ive tried and no satisfaction from the other 2 brands . Also , no overlap in usage . Has been over 3 months since touched the others . So, I am positive the progress is from this . Yes , its pricey compared to a majority of the others but I believe its a case of “ you get what you pay for”

  • SS
    SERVET S.
    Verified Buyer
    I recommend this product
    What is your main hair goal? I want to stop my hair thinning, I want to eliminate flakes
    Do you experience hair loss? Moderate or gradual hair thinning
    Do you experience any scalp concerns? Dryness or flakiness
    Rated 5 out of 5 stars
    1 month ago
    HAIR CARE

    IMPROVED HEALTH OF MY SCALP AND HAIR IS IMPROVING

  • WS
    William S.
    Verified Buyer
    I recommend this product
    What is your main hair goal? I want to eliminate flakes
    Do you experience hair loss? Severe or rapid hair thinning
    Do you experience any scalp concerns? Dryness or flakiness
    Rated 5 out of 5 stars
    1 month ago
    it works

    The serum as part of my daily routine has helped create a more healthy scalp and eliminate dryness. I do see a bit more growth.