Thick + Full Hair System – Act+Acre

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Cold Processed®

Thick + Full Hair System

4.7
Rated 4.7 out of 5 stars
1,101 Reviews

This 3-step system features lightweight, science-backed formulas to target early signs of thinning. Removes build-up, balances oil, and strengthens follicles for visible improvements in hair strength, fullness, and resilience.

+ Day 30: Scalp feels hydrated + balanced
+ Day 60: Hair is stronger with less breakage
+ Day 90: Hair fullness is visibly improved

Valued at: $170
Due to high demand, this product is temporarily out of stock. Reserve yours now — orders ship early May

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Why You Need This
cleansing
strengthening
volumizing
Real User Results
Before/After of woman with long, blonde hair using Act+Acre Stem Cell Shampoo
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

Frequently Bought With

Act+Acre Scalp Detox, Plant Based Capsules and Cold Processed Stem Cell Scalp Serum Product Line up
Thick + Full Pro System
Promotes thicker + fuller feeling hair with less overall shedding
Learn More
Act+Acre Stem Cell Scalp Serum with badge reading "National Psoriasis Foundation Recognized"
Stem Cell Scalp Serum™
Restorative, antioxidant-rich serum
Learn More
How to Use:

For Stem Cell Shampoo:
Apply to wet hair. Start cleansing at the nape of the neck and work upward for a deeper cleanse. Cleanse twice for optimal results.

For Stem Cell Conditioner:
After shampooing, apply from mid-lengths to ends. Rinse thoroughly. Leave in for 2-3 minutes for added nourishment.

For 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.
pre-wash, post-wash
daily

Frequently Bought With

Act+Acre Scalp Detox, Plant Based Capsules and Cold Processed Stem Cell Scalp Serum Product Line up
Thick + Full Pro System
Promotes thicker + fuller feeling hair with less overall shedding
Learn More
Act+Acre Stem Cell Scalp Serum with badge reading "National Psoriasis Foundation Recognized"
Stem Cell Scalp Serum™
Restorative, antioxidant-rich serum
Learn More
4.7
Rated 4.7 out of 5 stars
Based on 1,101 reviews
Total 5 star reviews: 860 Total 4 star reviews: 184 Total 3 star reviews: 42 Total 2 star reviews: 4 Total 1 star reviews: 11
95%would recommend these products
Slide 1 selected
1,101 reviews
  • L
    Lavta
    Reviewing
    Stem Cell Scalp Serum™
    I recommend this product
    Rated 5 out of 5 stars
    2 years ago
    Fantastic products

    I’m having tons of new hair growth after 2 months of using the serum and vitamin

  • J
    Jaime
    Verified Buyer
    Reviewing
    Stem Cell Scalp Serum™
    I recommend this product
    Rated 5 out of 5 stars
    2 years ago
    After a Few Months the Results Are REAL

    This was my first time trying a scalp serum and I purchased my first bottle in Nov 2023. It's now been about 4 months and I couldn't be happier with the results. All of the baby hairs near my hair line have completely grown out to the point it looks like I got curtain bangs cut, and I did no such thing! The results of using this serum every day are truly incredible, even my hair stylist commented how the baby hairs have grown out and I actually got her using the serum as well :)

  • M
    Miel
    Verified Buyer
    Reviewing
    Stem Cell Scalp Serum™
    I recommend this product
    Rated 5 out of 5 stars
    2 years ago
    LIFE CHANGING

    I’m on my 3rd bottle of this amazing serum. My hair has grown so fast in such little time. My middle part is a lot fuller and my hair looks so shiny. I always get asked what I’m doing and I let them know the serum I use! I recently got asked if I was wearing extensions lol. I will forever purchase this serum. No questions asked.

  • TW
    Tammy W.
    Verified Buyer
    Reviewing
    Stem Cell Scalp Serum™
    I recommend this product
    Rated 5 out of 5 stars
    2 years ago
    Get this in your basket!

    I am in love with this growth serum, I have tried many but this one is different. It leaves your hair feeling clean and fresh still after using it, Zero greasy or heavy feeling film at the roots like many of the growth serums I have tried and I LOVE the line up of clean ingredients! Highly recommend!

  • AD
    Aszure D.
    Verified Buyer
    Reviewing
    Stem Cell Scalp Serum™
    I recommend this product
    Rated 5 out of 5 stars
    3 years ago
    It really works!!

    I was noticing some thinning around my temple area and some shedding in the shower. I started using the Stem Cell serum every wash day, I been using the products about 6 weeks. I can see hair fuz where I was previously thinning, and very minimal shedding.