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Cold Processed®

Mini Stem Cell Scalp Serum

4.7
Rated 4.7 out of 5 stars
1,407 Reviews
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New! Meet the Mini of Our #1 Best Selling Scalp Serum

Powered by 2% Apple Stem Cells, this scalp serum promotes thicker, fuller looking hair and supports scalp health in early stages of hair thinning.

+ Promotes thicker, fuller looking hair
+ Supports hair follicle health
+ Increases scalp hydration

Size: 1 fl oz

Save 30% on Your First Subscription
(All following orders save 20%)
Why You Need This
balancing
hydrating
strengthening
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.
Side-by-side comparison of hair before and after 12 weeks of use, showing noticeable improvement in thickness and coverage.
Side-by-side comparison of hairline before and after 12 weeks of use, showing noticeable improvement in hair growth.

Save with sets

Three Stem Cell Serums on a gray background
Stem Cell Scalp Serum - 3 Pack
Restorative, antioxidant-rich serum
Learn More
Act+Acre Fuller Hair System
Save $28
Fuller Hair System
Accelerate fuller + thicker feeling hair
Learn More

How to use Act+Acre Stem Cell 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 Stem Cell Serums on a gray background
Stem Cell Scalp Serum - 3 Pack
Restorative, antioxidant-rich serum
Learn More
Act+Acre Fuller Hair System
Save $28
Fuller Hair System
Accelerate fuller + thicker feeling hair
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.