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To The Root® Scalp Serum

4.2
Rated 4.2 out of 5 stars
419 Reviews

Slows Greys | Improves Density | Oil-Free

A skincare-grade scalp serum to preserve pigment and promote thicker, fuller hair with weightless volume and an oil-free finish. Visible results in as little as 3–6 months with daily, consistent use in the early stages of greying.

Original price: Sale price: $46.75
$1.56/day

A 1-month supply delivered every month.

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Original price: Sale price: $120
$1.33/day

A 3-month supply delivered every 3 months.

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Original price: Sale price: $225
$1.25/day

A 6-month supply delivered every 6 months.

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We recommend 3-6 months of consistent use to see results.

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Enhance and elevate your routine.

$108
value
Arey Scalp Brush on cream background showing the bristle side. The dark wood brush has metal nickel-plated bristles on a natural rubber cushion base, with the arey brand name on the handle. Arey Scalp Scrub bottle on cream background. Label reads: arey. SCRUB. A clarifying scalp exfoliant that delivers antioxidants and a pigment-preserving peptide. All hair types. 100ml / 3.38 fl oz. Gray cap with 'NOT TODAY' text on a white background

WHAT IS IT?

 

To The Root® is designed to support long-term scalp and strand health while adding weightless volume. Powered by our patented Mela-9® Complex—a science-backed blend of antioxidants and a clinically proven peptide—it helps preserve natural pigment at the source and nourish follicles for thicker, fuller hair. This non-greasy formula suits all hair types and won’t weigh down roots. Most see stronger, healthier hair within 3–6 months with daily, consistent use. Color-safe, dermatologist-tested and hypoallergenic.

HOW TO USE

 

1. Apply daily to the scalp on wet or dry hair.
2. Part into sections and apply 1–3 pumps per targeted area.
3. Massage in; do not rinse. Let absorb, then style as usual.

Pro Tip: For optimal results in slowing greys and supporting repigmentation, pair with Not Today, Grey, our daily supplement, and use both daily for 3–6 months.

CLINICAL RESULTS

 

After 6 months using To The Root® Scalp Serum and Not Today, Grey Daily Supplement:
88% saw a decrease in new grey hair growth.
13% decrease in grey hair growth vs. a 10% increase in the placebo group.
more participants experienced thicker, fuller hair with enhanced shine vs. placebo.

This is the largest and only clinical study focused on the appearance of grey hair to date. Results typically appear in 3–6 months with daily, consistent use.

Results based on a 6-month, randomized, double-blind, placebo-controlled study of the effects of The System on the appearance of grey hair on 173 subjects, ages 28-65, all less than 25% grey. Results determined by blinded clinical counting and/or clinical photo grading.

INGREDIENTS

 

Water (Aqua), Glycerin, Palmitoyl Tetrapeptide 20 Amide, Citrus Reticulata (Tangerine) Extract, Polygonum Multiflorum (Fo-Ti) Root Extract, Sesame Indicum (Sesame) Seed Extract, Biotin, Zanthoxylum Bungeanum Fruit Extract, Panax Ginseng Root Extract, Humulus Lupulus (Hops) Flower Extract, Panthenol, Glycine Soja (Soybean) Germ Extract, Hydrolyzed Barley Protein, Wasabia Japonica Leaf Extract, Caffeine, Coffea Arabica (Coffee) Seed Extract, 1,2-Hexanediol, Butylene Glycol, Hydroxyethylcellulose, Acetyl Tyrosine, Pentylene Glycol, Gluconolactone, Sodium Benzoate

Contains: Sesame
Free of: Sulfates, Parabens, Phthalates, Synthetic Fragrance, Polyethylene Glycol, Formaldehyde & Dyes

Arey works best on those who have 0-30% grey hair. Not sure what percentage you are?
4.2
Rated 4.2 out of 5 stars
419 Reviews

Proven Results

Results may vary

Tested in a Gold Standard Clinical Study with Not Today, Grey

To The Root was studied with Not Today, Grey and together they were clinically shown to reduce grey hair growth and improve overall hair health.

Graph showing hair growth statistics with percentages on a green background
Before and after comparison of hair growth over 24 weeks, showing a section of hair with a dotted line indicating measurement.
Before and after comparison of hair thickness with a focus on a rectangular section.
Bar graph comparing placebo and 'The System' for grey hair growth

Results based on a 6-month, randomized, double-blind, placebo-controlled study of the effects of The System on the appearance of grey hair on 173 subjects, ages 28-65, all less than 25% grey. Results determined by blinded clinical counting and/or clinical photo grading.

How to Apply

How to apply To The Root scalp serum
To The Root® utilizes a clinically effective peptide combined with powerful antioxidants to preserve hair’s natural color and help repigment greying strands.

HOW TO USE:
  • Apply on wet or dry hair.
  • Create a part, and pump the serum directly onto your scalp.
  • Apply 3-4 pumps to areas of concern 1-2 times per day.
  • You can also pump the serum onto your fingertips to get harder to reach areas.
  • Gently massage in.
  • Allow serum to absorb in for 10 minutes, then blow dry or let hair dry naturally.

How It Works

TO THE ROOT® SERUM

  • Stimulate

    Stimulate

    A clinically efficacious peptide helps with repigmentation by stimulating the MC1-R (melanocortin 1 receptor).
  • Safeguard

    Safeguard

    Antioxidants including Fo-Ti and sesame seed help reduce oxidative stress in the hair bulb.
  • Nourish

    Nourish

    Extracts from wasabi, ginseng, soybeans and hops provide nourishment to the roots and promote cell turnover to create healthier hair.
  • Volumize

    Volumize

    Pantothenic acid (B5), provides anti-inflammatory properties and is involved in activating the proliferation of cells in the skin barrier and also helps bind water to the skin, adding shine.
TO THE ROOT® SERUM

4.2
Rated 4.2 out of 5 stars
Based on 419 reviews
419 reviews
  • Samantha R.
    Verified Buyer
    6 days ago
    Reviewing
    To The Root® Scalp Serum
    Rated 5 out of 5 stars
    Root Scalp Serum

    I have used it for 6 months, I don't notice any grey regimentation but I feel like its making my hair feel more full and healthy.

    Arey
    2 days ago

    Thank you for your wonderful review, Samantha! We're happy to hear that you're noticing your hair feeling more full and healthy after 6 months of consistent use with To The Root® Scalp Serum - those are fantastic benefits that show the serum is working to support your overall scalp health! While grey regrowth can take time and varies from person to person, the improved fullness and health you're experiencing are great signs that you're on the right track. Consistency truly is key, and you're doing everything right! We appreciate you being such a valued part of our community and for sharing your honest experience with us!

  • Sarah L.
    Verified Buyer
    1 week ago
    Reviewing
    To The Root® Scalp Serum
    Rated 5 out of 5 stars
    less greys

    I've been using the scalp serum, together with other arey products and after about 6 months of use, I definitely noticing less greys. I also like to use it before I go out, so tame my frizzy hair so I don't need to use hair gel or spray, and it works great!

    Arey
    1 week ago

    Thank you for your wonderful review, Sarah! We're so thrilled to hear that To The Root® Scalp Serum has been working so well for you over the past 6 months and that you're noticing less greys! It's fantastic that you've found an additional benefit using it to tame your frizzy hair before going out - what a great way to get double the value from the product without needing hair gel or spray. That's exactly the kind of hair wellness experience we love to hear about. We appreciate you being such a valued part of our community and for sharing your honest experience with us!

  • Julia R.
    Verified Buyer
    Age Range 35-46
    Percentage Grey 0%-10%
    What improvements have you noticed? (Optional) Less new grey hair, Visible repigmentation, Feeling more confident
    How consistent are you with your usage? Daily
    How long have you been using the product? 6-11 months
    1 week ago
    Age Range 35-46
    Percentage Grey 0%-10%
    What improvements have you noticed? (Optional) Less new grey hair, Visible repigmentation, Feeling more confident
    How consistent are you with your usage? Daily
    How long have you been using the product? 6-11 months
    Reviewing
    To The Root® Scalp Serum
    Rated 5 out of 5 stars
    Actually works!

    I’ve been using this for 8 months and believe that this has helped slow further graying and repigment some grays. I have found several hairs that have been repigmented, the older part of the hair was white and the root and newer part of the hair was brown. I’ll keep using this product!

    Arey
    1 week ago

    Thank you for your wonderful review, Julia! We're so thrilled to hear that To The Root® Scalp Serum has been working so well for you over the past 8 months and that you're seeing such positive results with slowing greying and repigmentation! It's fantastic that you've noticed the difference between the older white parts and the newer brown growth - that's exactly the kind of hair wellness journey we love to hear about. We're so glad you'll be continuing with the product and appreciate you being such a valued part of our community and for sharing your honest experience with us!

  • Madalyn L.
    Verified Buyer
    3 weeks ago
    Reviewing
    To The Root® Scalp Serum
    Rated 5 out of 5 stars
    Weightless and doesn't leave a residue!

    I love how this serum absorbs quickly and doesn't leave a damp or greasy residue in my hair/scalp.

    Arey
    3 weeks ago

    Thank you for your wonderful review, Madalyn! We're so thrilled to hear that you're loving the weightless feel of To The Root® Scalp Serum and how quickly it absorbs without leaving any damp or greasy residue! We appreciate you being such a valued part of our community and for sharing your experience with us!

  • Michelle R. G.
    Verified Buyer
    Age Range 35-46
    Percentage Grey 10%-20%
    What improvements have you noticed? (Optional) Improved texture, volume, shine
    How consistent are you with your usage? Daily
    How long have you been using the product? 4-5 months
    1 month ago
    Age Range 35-46
    Percentage Grey 10%-20%
    What improvements have you noticed? (Optional) Improved texture, volume, shine
    How consistent are you with your usage? Daily
    How long have you been using the product? 4-5 months
    Reviewing
    To The Root® Scalp Serum
    Rated 5 out of 5 stars
    Nice serum

    I love that it’s fragrance free and doesn’t leave a film on the hair.

    Arey
    3 weeks ago

    Thank you for your wonderful review, Michelle! We're so glad to hear that you're loving the fragrance-free formula of To The Root® Scalp Serum and that it doesn't leave any film on your hair! It's fantastic that you're experiencing such a clean, lightweight feel. Thank you for being such a valued part of our community and for sharing your honest experience with us!

FAQs

It is a daily scalp serum designed to slow the growth of grey hair, support hair density, and improve overall hair and scalp health.

The serum uses a blend of peptides, antioxidants, and plant extracts to support melanocyte stem cells and reduce oxidative stress, helping to maintain natural hair color.

1. Apply daily to the scalp on wet or dry hair.
2. Part into sections and apply 1–3 pumps per targeted area.
3. Massage in; do not rinse. Let absorb, then style as usual.

Most people start noticing changes like healthier, shinier, fuller hair within 1–3 months of daily use. Visible changes in grey growth and density typically occur over 3–6+ months, depending on the percentage of grey hair, lifestyle factors, and consistency.

No! Unlike many scalp serums, To The Root® is completely oil-free. Once it dries, there’s no residue, buildup, or stickiness—just clean, lightweight roots. In fact, the formula can actually add volume at the root, making it easy to incorporate into your regular styling routine.

Yes, it is dermatologically tested, vegan, cruelty-free, and made without parabens, phthalates,  sulfates, formaldehyde, dyes or fragrances.

Yes. To The Root® was tested with our daily supplement, Not Today, Grey. Together, they are backed by the largest and only clinical study to date focused on the appearance of grey hair.

In a 6-month, randomized, double-blind, placebo-controlled study of 173 participants (ages 28–65, all with less than 25% grey), To The Root® and Not Today, Grey showed significant results compared to placebo:

  • 88% saw a decrease in new grey hair growth
  • 13% decrease in grey hair growth vs. a 10% increase in the placebo group
  • 3× more participants experienced thicker, fuller hair with enhanced shine compared to placebo

Results typically appear within 3–6 months of daily, consistent use, and were determined through blinded clinical counting.

Yes. All Arey products are safe for all hair types and colors, including textured and color-treated hair. To The Root® works by supporting the hair follicle—not by depositing color—so it’s universally compatible.

Absolutely. To The Root® is color-safe and can actually help counteract some of the damage caused by chemical processing. Our antioxidant-rich formulas nourish your scalp and strands to support thicker, healthier hair over time.

Yes, and we encourage it. To The Root® can be layered with your usual haircare and styling products. For best results, pair it with our daily supplement, Not Today, Grey, to support pigment and hair health from the inside-out.

To The Root® is generally considered safe for external use if pregnant or breastfeeding.

No. To The Root® does not contain any dyes or colorants. It works by supporting your body’s natural pigment production, helping extend and restore your hair’s original color rather than covering greys.

Yes. To The Root® is designed for your scalp and your beard. To The Root® is oil-free and hypoallergenic, so it won’t clog your pores or cause any skin irritation. 6-8 pumps of the lightweight formula can be applied 1-2 times a day.

Yes. All Arey products are vegan, cruelty-free, and gluten-free, and made without silicones, parabens, or synthetic dyes.

Have other questions or need help?