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Fine Hair

GRO Hair Serum

4.4
Rated 4.4 out of 5 stars
5,502 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 5,502 reviews
Total 5 star reviews: 3.8k Total 4 star reviews: 962 Total 3 star reviews: 371 Total 2 star reviews: 172 Total 1 star reviews: 220
5,502 reviews
  • YVETTE A.
    Verified Buyer
    Reviewing
    GRO Hair Serum
    I recommend this product
    Age Range 55-64
    What is your hair length? Medium
    What are your concerns? Thinning hair, Bald spots, Hair loss prevention
    What is your hair type? Fine, Curly, Dry, Color Treated, Chemically Treated
    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? Hair thickness, Easy to incorporate in daily routine
    Rated 5 out of 5 stars
    3 minutes ago
    Actually Working

    I have been using this product every day and it actually has been working in making my hair thinker and has some growth.

  • Jane R.
    Verified Buyer
    Reviewing
    GRO Hair Serum
    I recommend this product
    Age Range 65+
    What is your hair length? Short
    What are your concerns? Thinning hair
    What is your hair type? Fine, Curly, Color Treated
    How often are you using the product? Every day
    How long have you been using the product? 150 days (5 months) or more
    What improvements have you noticed? Hair growth, Less shedding
    Rated 4 out of 5 stars
    Yesterday
    Large Size

    Nice to have. Would like t o use it as a refill for the smaller bottle. Not made for that-2 droppers and small opening make it a challenge

  • Karen O.
    Verified Buyer
    Reviewing
    GRO Hair Serum
    I recommend this product
    Age Range 45-54
    What is your hair length? Long
    What are your concerns? Thinning hair, Overall health and wellness (sleep / nutrition), Clean and vegan products, Hair loss prevention
    What is your hair type? Fine, Color Treated, Straight, Normal
    How often are you using the product? 5 - 6 times per week
    How long have you been using the product? 120 days (4 months)
    What improvements have you noticed? Hair length, Hair growth, Improved overall hair health
    Rated 5 out of 5 stars
    Yesterday
    Love This Magic Elixer

    Have been using this for 4 or 5 months, around my hairline. VERY pleased with the results. It's so much more 'filled in' now... worth every penny. Thank you.

  • Kathleen H.
    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, Graying hair or gray hair prevention, Hair loss from hormonal changes (incl postpartum), Hair loss prevention
    What is your hair type? Fine, Straight
    How often are you using the product? Every day
    How long have you been using the product? 150 days (5 months) or more
    What improvements have you noticed? Hair growth, Less shedding
    Rated 4 out of 5 stars
    Yesterday
    Minimizes shedding

    This product has helped to minimize the shedding I have, especially in the fall months

  • Susan R.
    Verified Buyer
    Reviewing
    GRO Hair Serum
    I recommend this product
    Age Range 65+
    What is your hair length? Medium
    What are your concerns? Bald spots, Thinning hair
    What is your hair type? Medium, Wavy
    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 thickness, Improved volume/body
    Rated 4 out of 5 stars
    2 days ago
    Great Serum

    I have been using this serum for a while now, and really think my hair is looking fuller and thicker.

  • *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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