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Cold Processed®

Thick + Full Hair System

4.7
Rated 4.7 out of 5 stars
1,127 Reviews
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A complete cleanse-to-treat system for advanced hair thinning, powered by Capixyl™ at the clinical level.

  • +90% saw new hair growth in 6 weeks*
  • +100% agree product increased hair thickness*
  • +100% agree hair felt stronger + healthier*
  • +Trichologist formulated + Cold Processed®
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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
Bottle of scalp serum with awards on a gray background
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
Bottle of scalp serum with awards on a gray background
Stem Cell Scalp Serum™
Restorative, antioxidant-rich serum
Learn More
4.7
Rated 4.7 out of 5 stars
Based on 1,127 reviews
95%would recommend these products
Slide 1 selected
1,127 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!

  • PW
    Phyliss W.
    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? Itchiness
    Rated 5 out of 5 stars
    1 week ago
    Great!

    I am an over 70 female that gets highlights on my type 1a thinning hair. I have used this system for about three weeks and I have to say I Love it! Hair has more volume, shine, and even my hairdresser commented on how healthy it seemed!

  • JM
    Julie M.
    Verified Buyer
    I recommend this product
    What is your main hair goal? I want to balance my oily scalp, I want to stop my hair thinning, I want to grow longer ahir
    Do you experience hair loss? Moderate or gradual hair thinning
    Do you experience any scalp concerns? Oiliness, Dryness or flakiness, Itchiness
    Rated 5 out of 5 stars
    1 week ago
    Love

    This system is great. I have a ton of hair growth and my overall scalp and hair health have improved

  • AO
    Amy O.
    Verified Buyer
    I recommend this product
    What is your main hair goal? I want to hydrate + de-frizz my hair, I want to grow longer ahir
    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 week ago
    Shocked at how quickly I saw a difference!

    I am a product snot - have super long hair that started to change at 45 - it went from stick straight to fuzzy curly. I took a shower right away when I got my box and expected nothing (results take continued use). Instead my hair was immediately more manageable, smooth and soft. I cannot wait to see what continued use brings!

  • MW
    Mary W.
    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
    3 weeks ago
    Love this shampoo!

    I use the stem cell shampoo along with the conditioner and it makes my hair really soft and tames my frizz. I also really like the slightly minty scent. I wash my hair daily and it doesn't weigh it down.