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5 Reasons People Love the GRO Hair Serum

Shedding can happen before visible thinning appears. Here's why this lightweight daily serum is helping support healthier-looking, fuller hair—one simple step at a time.

93% saw less shedding
90% noticed an improved appearance of hair
83% said their hair felt stronger
Helps Reduce Hair Shedding
Supports Fuller-Looking Hair
Lightweight & Non-Greasy
Powered by Plant Actives & Peptides
93% Saw Less Shedding*
Helps Reduce Hair Shedding
Supports Fuller-Looking Hair
Lightweight & Non-Greasy
Powered by Plant Actives & Peptides
93% Saw Less Shedding*
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Reason 1

Helps Reduce Shedding

You don't have to wait until thinning becomes noticeable to start caring for your hair. GRO Hair Serum helps reduce shedding while supporting the health and appearance of the hair you already have.

"I noticed less hair coming out in the shower, and over time my hair started looking fuller." — Verified Buyer
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Reason 2

Lightweight Enough for Every Day

A daily hair ritual shouldn't feel heavy. This lightweight, non-greasy serum absorbs into the scalp without leaving behind a greasy finish or weighing down your hair.

90% of participants noticed an improved appearance of their hair after consistent use.*
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Reason 3

Simple to Add to Your Routine

Drop. Massage. Done.

Apply a dropperful directly to the scalp, massage it in, and go. Use it on wet or dry hair with no rinsing required.

"It's so easy to work into my routine every day. I apply it, massage it in, and I'm done." — Verified Buyer
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Reason 4

Backed by Plants—and Research

Powered by plant-based actives and peptides, including turmeric, red clover, mung bean sprout, caffeine, and biotin.


Results based on once-daily use.

In a 120-day consumer study:

93% saw less shedding
90% noticed an improved appearance of hair
83% said their hair felt stronger
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Reason 5

Fuller-Looking Hair Takes Time

Healthy-looking hair is a process, not an overnight transformation. With consistent daily use, GRO Hair Serum helps support visible fullness and a healthier-looking overall appearance over time.

"Great to have a 3 month quantity of serum available, at a good price. I believe it works!" — Joan C.
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Meet GRO Hair Serum

Our best-selling daily serum, powered by phytoactives and peptides, that visibly reduces shedding and supports fuller, healthier-looking hair.


The daily serum 5,700+ reviewers keep restocking.

Precision dropper applicator
Water-based, non-greasy formula
No-rinse, wet or dry hair
Vegan and cruelty-free

GRO Hair Serum

GRO Hair Serum - 1 Month Supply (1 oz)
GRO Hair Serum
GRO Hair Serum - 1 Month Supply (1 oz)
GRO Hair Serum
★★★★★
(5707)

GRO Hair Serum

Our best-selling serum powered by phytoactives and peptides that visibly reduces shedding and supports fuller, healthier-looking hair.
$64.00
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Build Your Daily Hair Routine

GRO Dry Shampoo
★★★★★
GRO Dry Shampoo
$22.40$36.0038% OFF
GRO Revitalizing Shampoo & Conditioner Travel Size Kit
★★★★★
GRO Revitalizing Shampoo & Conditioner Travel Size Kit
$19.60$28.0030% OFF
GRO+ Advanced Hair Serum
★★★★★
GRO+ Advanced Hair Serum
$45.50$78.0042% OFF
GRO Biotin Gummies for Hair Wellness®
★★★★★
GRO Biotin Gummies for Hair Wellness®
$21.00$36.0042% OFF
GRO Lash Serum
★★★★★
GRO Lash Serum
$39.90$68.0041% OFF
GRO More Kit
★★★★★
GRO More Kit
$48.30$100.0052% OFF

Trusted by Women Who've Been There

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Frequently Asked Questions

*Based on a 120-day consumer perception study of 40 participants using GRO Hair Serum once daily.