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Fine Hair

GRO Hair Serum

4.4
Rated 4.4 out of 5 stars
5,489 Reviews

#1 Prestige Hair Serum* for Thinning & Shedding

A plant-powered, clinically tested and scientifically proven serum that reduces shedding and thinning with visible results in as soon as 3 months.**

  • Reduces shedding and helps prevent hair thinning
  • Supports visibly fuller, healthier hair over time
  • Strengthens strands while promoting scalp health

Perfect for: Moderate to severe hair loss and thinning
Hair Concerns: Stress-related hair loss, post-partum, menopause, aging, medical conditions, harsh styling

One Time Purchase
For best results, we recommend 3-6 months of consistent use
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  • Reduces shedding and helps prevent hair thinning
  • Supports visibly fuller, healthier hair over time
  • Strengthens strands while promoting scalp health

There’s Power in Numbers

Up to 90%

reduction in signs of shedding**

Up to 56%

increase in appearance of hair density**

93%

saw less shedding†

90%

saw an improvement in appearance of their hair†

83%

said their hair was stronger and more resilient†

#1 Prestige Hair Serum* for Thinning & Shedding

Vegamour’s plant-powered, clinically tested solutions are designed to deliver real, visible results — because it’s not just about hair, it’s about feeling like yourself again.

Our Standards

  • Check

    Clinically Tested

  • Check

    Science-Backed

  • Check

    Trusted by Experts

  • Check

    Vegan

  • Check

    Clean

  • Check

    Cruelty-Free

See It to Believe It

Real women, real results, real confidence.

Based on consistent use for at least 90 days. Individual results may vary.

Based on consistent use for at least 90 days. Individual results may vary.

How to Use GRO Hair Serum

Visibly fuller, healthier hair in as soon as 3 months.**

Transform Your Hair & Your Confidence

With daily use of GRO Hair Serum, you may begin to notice:

Your GRO Timeline

  • Month 1

    Less breakage, with a healthier, more hydrated scalp**

  • Month 2

    Thicker, fuller hair with

    noticeable improvement**

  • Month 3

    Visibly less shedding and more resilient hair**

  • Month 4+

    Ongoing results and

    unmatched confidence

The Viral Hair Serum Trusted by Millions

4.4
Rated 4.4 out of 5 stars
Based on 5,489 reviews
Total 5 star reviews: 3.8k Total 4 star reviews: 958 Total 3 star reviews: 371 Total 2 star reviews: 172 Total 1 star reviews: 220
5,489 reviews
  • R L.
    Verified Reviewer
    Reviewing
    GRO Hair Serum
    I recommend this product
    Age Range Under 24
    What is your hair length? Medium
    What are your concerns? Thinning hair, Hair loss prevention
    What is your hair type? Fine
    How often are you using the product? 3 - 4 times per week
    How long have you been using the product? 30 days (1 month)
    What improvements have you noticed? Hair growth, Easy to incorporate in daily routine
    Rated 5 out of 5 stars
    4 minutes ago
    Great Product

    I applied after showering while hair was still wet. Doesn't leave any weird residues after hair dries. I used a month supply and didn't notice much of a difference. Would recommend using for at least a couple months to see a big improvement.

  • Kyong
    Reviewing
    GRO Hair Serum
    I recommend this product
    Rated 5 out of 5 stars
    5 hours ago
    5 Stars

    It works well for me.

  • Madelyn M.
    Verified Buyer
    Reviewing
    Complimentary: GRO Hair Serum
    I recommend this product
    Age Range 25-34
    What is your hair length? Long
    What are your concerns? Thinning hair, Hair loss prevention, Dry or damaged hair
    What is your hair type? Wavy, Fine, Dry
    How often are you using the product? 5 - 6 times per week
    How long have you been using the product? 90 days (3 months)
    What improvements have you noticed? Hair growth, Improved overall hair health, Easy to incorporate in daily routine
    Rated 5 out of 5 stars
    Yesterday
    A staple!!!

    I loveeee this stuff!!! I have more hair and it feels healthier when I’m using this regularly. I now order the three pack since it’s slightly more cost effective and my last shipment had a damaged, leaking bottle and Veganour was very quick to immediately replace it and make things right. Excited to keep buying and growing out my hair!

  • Megan G.
    Verified Buyer
    Reviewing
    GRO Hair Serum
    I recommend this product
    Age Range 25-34
    What is your hair length? Medium
    What are your concerns? Thinning hair, Hair loss from hormonal changes (incl postpartum), Dry or damaged hair, Overall health and wellness (sleep / nutrition)
    What is your hair type? Fine, Medium, Curly, Dry, Wavy
    How often are you using the product? 1 - 2 times per week
    How long have you been using the product? 150 days (5 months) or more
    What improvements have you noticed? Hair thickness, Improved volume/body, Improved overall hair health, Hair growth, Hair length
    Rated 5 out of 5 stars
    Yesterday
    Works!

    I have so much volume since I’ve been using this product! My results are phenomenal! I’ve been using it for over a year now. Hope this helps!

  • R L.
    Verified Buyer
    Reviewing
    GRO Hair Serum (3 Pack)
    I recommend this product
    Age Range 45-54
    What is your hair length? Short
    What are your concerns? Bald spots, Hair loss prevention, Graying hair or gray hair prevention, Thinning hair, Overall health and wellness (sleep / nutrition)
    What is your hair type? Fine, Dry
    How often are you using the product? Every day
    How long have you been using the product? 30 days (1 month)
    What improvements have you noticed? Improved overall hair health
    Rated 4 out of 5 stars
    3 days ago
    GRO hair serum

    i've been using it everyday for almost a month, look forward to seeing the good result as advertisement describes. at this point, not much difference yet.

  • *Based on 2024 USA unit sales of GRO Hair Serum. Source: YipitData
  • **Based on a 120-day independent, third-party clinical study with 40 participants using GRO Hair Serum once daily.
  • †Based on a 120-day consumer perception study of 40 participants using GRO Hair Serum once daily.
  • *Based on a 120-day independent, third-party clinical study with 40 participants using GRO+ Advanced Hair Serum once daily.
  • **Based on a 120-day consumer perception study of 40 participants using GRO+ Advanced Hair Serum once daily.
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