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Fine Hair

GRO Hair Serum

4.4
Rated 4.4 out of 5 stars
5,436 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

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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 5,436 reviews
Total 5 star reviews: 3.7k Total 4 star reviews: 950 Total 3 star reviews: 368 Total 2 star reviews: 170 Total 1 star reviews: 220
5,436 reviews
  • Shannon F.
    Verified Buyer
    Reviewing
    GRO Hair Serum
    I recommend this product
    Age Range 25-34
    What is your hair length? Long
    What are your concerns? Thinning hair
    What is your hair type? Fine, Wavy
    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? Less shedding, Easy to incorporate in daily routine
    Rated 4 out of 5 stars
    18 hours ago
    Reduced shedding (I think??)

    Just finished my first bottle. It’s hard to say for certain because there are so many factors but believe I saw reduced hair shedding when using it. There was a week or so between when I finished my first bottle and my second one arrived (my fault) and I noticed more shedding during that week. Cautiously optimistic that using this daily will keep the shedding at bay. Going to see how bottle #2 does !

  • Vikki B.
    Verified Buyer
    Reviewing
    GRO Hair Serum
    I recommend this product
    Age Range 55-64
    What is your hair length? Long
    What are your concerns? Thinning hair, Bald spots, Hair loss prevention, Overall health and wellness (sleep / nutrition), Clean and vegan products
    What is your hair type? Fine, Straight
    How often are you using the product? Every day
    How long have you been using the product? 90 days (3 months)
    What improvements have you noticed? Easy to incorporate in daily routine
    Rated 5 out of 5 stars
    Yesterday
    GRO Hair Serum

    I have been using this product for several months. I have seen barely any improvements thus far, but I will stick with it for a little while longer and hopefully, my bald spots will lessen.

  • Lalalwalk
    Verified Reviewer
    Reviewing
    GRO Hair Serum
    I recommend this product
    Age Range 35-44
    What is your hair length? Long
    What are your concerns? Bald spots, Dry or damaged hair
    What is your hair type? Medium
    How often are you using the product? 3 - 4 times per week
    How long have you been using the product? 90 days (3 months)
    What improvements have you noticed? Hair growth
    Rated 5 out of 5 stars
    2 days ago
    wowwwww this works!!!!!

    Impressed by the results! My hair feels thicker, healthier, and noticeably fuller after consistent use. The serum absorbs quickly, smells great, and doesn’t leave any residue. After a few weeks, I noticed less shedding and new baby hairs. Definitely worth the investment for anyone looking to improve hair growth. Gifted by

  • Sara
    Reviewing
    GRO Hair Serum
    I recommend this product
    Age Range 35-44
    What is your hair length? Medium
    What are your concerns? Thinning hair, Graying hair or gray hair prevention, Hair loss from hormonal changes (incl postpartum), Dry or damaged hair, Overall health and wellness (sleep / nutrition)
    What is your hair type? Medium
    How often are you using the product? 3 - 4 times per week
    How long have you been using the product? 60 days (2 months)
    What improvements have you noticed? Hair growth, Hair thickness, Less shedding
    Rated 5 out of 5 stars
    2 days ago
    Best results

    I received this gifted by the brand. I have been using this serum for months and I van definitely see the difference in the thickness of my hair. My roots overall feel fuller and I can see the new growth on my hair line. The condition of my hair and overall scalp is better and looks more healthy. I am really excited to see my results after 6 months. I would recommend to anyone.

  • Elli
    Verified Reviewer
    Reviewing
    GRO Hair Serum
    I recommend this product
    Age Range Under 24
    What is your hair length? Long
    What are your concerns? Bald spots, Hair loss prevention, Dry or damaged hair, Scalp concerns (irritation / dandruff / oily), Graying hair or gray hair prevention
    What is your hair type? Medium, Straight, Oily
    How often are you using the product? Every day
    How long have you been using the product? 60 days (2 months)
    What improvements have you noticed? Less shedding, Hair growth, Hair length, Improved volume/body, Improved overall hair health
    Rated 5 out of 5 stars
    2 days ago
    Love it

    It was my first time trying this product. The first few days when I applied it to my scalp, I felt a burning sensation, but then I got used to it. After a couple of weeks, I noticed my hair growing faster, looking thicker and stronger. I also love that it has clean, clinically-proven ingredients — that really matters to me.It was gifted by vegamour.

  • *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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