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To The Root® Scalp Serum — Anti-Grey & Density Serum

4.3
Rated 4.3 out of 5 stars
434 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
$46.75/month

A 1-month supply delivered every month.
Free shipping. Pause or cancel anytime.

Most Popular

Original price: Sale price: $120
$40/month

A 3-month supply delivered every 3 months.
Free shipping. Pause or cancel anytime.

Best Value

Original price: Sale price: $225
$37.50/month

A 6-month supply delivered every 6 months.
Free shipping. Pause or cancel anytime.

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

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Enhance and elevate your routine.

$100
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. Product shot of Arey Mend hair treatment tube on a white/cream background. Label reads: arey® Mend. "A nourishing cream to moisturize and seal the cuticle with heat protection". All hair types. 60ml/2 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 fewer grey hairs.
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

SHIPPING + RETURNS

 

Shipping
Free shipping on subscriptions and orders $100+ (US only). Orders ship within 7-10 business days, with tracking sent via email. Questions? Email hey@arey.com.

30-Day Money Back Guarantee (first orders)
Not right for you? You have 30 days from delivery to request a refund on your first order, no returns necessary. We'll refund each product, up to $113/order, less a $5 processing fee, to your original payment method. See full refund policy →

Returns + Refunds (all other orders)
For orders beyond your first, unopened, unused items can be returned within 15 days for a refund, less a $5 handling fee. We'll email you a prepaid label for US orders. Refunds process 5-7 business days after we receive your return. Contact hey@arey.com to start a return.

Arey works best on those who have 0-30% grey hair. Not sure what percentage you are?
4.3
Rated 4.3 out of 5 stars
434 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 natural hair 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
4.3
Rated 4.3 out of 5 stars
Based on 434 reviews
434 reviews
  • Amber D.
    Verified Buyer
    What improvements have you noticed? (Optional) Healthier scalp, Less new grey hair
    How consistent are you with your usage? Daily
    How long have you been using the product? 2-3 months
    1 week ago
    What improvements have you noticed? (Optional) Healthier scalp, Less new grey hair
    How consistent are you with your usage? Daily
    How long have you been using the product? 2-3 months
    Reviewing
    To The Root® Scalp Serum
    Rated 5 out of 5 stars
    This scalp serum is great!

    I use this every day and love the benefits!

    Arey
    1 week ago

    Thank you for your great review, Amber. We're so happy to hear that you're experiencing such great benefits from To The Root® Scalp Serum. We appreciate you being such a valued part of our community and for sharing your experience with us!

  • Tanya D.
    Verified Reviewer
    Age Range 47-56
    Percentage Grey 30%+
    What improvements have you noticed? (Optional) Improved texture, volume, shine, Healthier scalp, Visible repigmentation, Less new grey hair
    How consistent are you with your usage? Daily
    How long have you been using the product? 1+ year
    1 week ago
    Age Range 47-56
    Percentage Grey 30%+
    What improvements have you noticed? (Optional) Improved texture, volume, shine, Healthier scalp, Visible repigmentation, Less new grey hair
    How consistent are you with your usage? Daily
    How long have you been using the product? 1+ year
    Reviewing
    To The Root® Scalp Serum
    Rated 5 out of 5 stars
    Seeing results

    I’m about 60% gray and I’ve felt like it has been coming in rapidly. I started the root spray in April of 2025. I was not sure I was seeing results. I added the night serum in April of 2026 and decided to go with the supplement as well.

    It’s hard for me to get pictures to show the growth, but I think the photo I posted shows streaks of red that were not there a year ago. My hair looks less brittle and it is definitely thicker. I don’t use the hair products because I do not like the scent, but that doesn’t seem to be a common complaint.

    Arey
    1 week ago

    Thank you for your wonderful review, Tanya! We're so thrilled to hear that you're seeing results with To The Root® Scalp Serum, especially after committing to your routine over the past year. It's fantastic that you're noticing those streaks of red coming through, and we're so glad to hear that your hair is looking less brittle and feeling thicker. The fact that you decided to add the night serum and supplement to your regimen shows real dedication, and we're confident that with continued use you'll keep experiencing these amazing benefits. We appreciate you being such a valued part of our community and for sharing your experience with us!

  • Edna M.
    Verified Buyer
    1 week ago
    Reviewing
    To The Root® Scalp Serum
    Rated 5 out of 5 stars
    non-greasy

    This product is easily to use, apply and yields good results.

    Arey
    1 week ago

    Thank you for your review, Edna! We're so glad to hear that To The Root® Scalp Serum is easy to use and apply, and that you're getting great results. We really appreciate you being such a valued part of our community and for sharing your experience with us!

  • Teresa H.
    Verified Buyer
    Age Range 35-46
    Percentage Grey 0%-10%
    What improvements have you noticed? (Optional) Healthier scalp, Improved texture, volume, shine, 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? 1+ year
    2 weeks ago
    Age Range 35-46
    Percentage Grey 0%-10%
    What improvements have you noticed? (Optional) Healthier scalp, Improved texture, volume, shine, 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? 1+ year
    Reviewing
    To The Root® Scalp Serum
    Rated 5 out of 5 stars
    Super easy to use

    I use this daily for the past year or two. Easy to travel with and I use this in the mornings when brushing the teeth so I don’t forget. I believe it helps keep the greys away.

    Arey
    2 weeks ago

    Thank you for your wonderful review, Teresa! We're so thrilled to hear that To The Root® Scalp Serum has become such an easy part of your daily routine, and we love that you've found a way to remember to use it every morning. It's fantastic that you're seeing results you believe in after using it consistently for the past year or two, and we really appreciate you sharing your experience with us. Your dedication to your routine means the world to us, and we appreciate you being such a valued part of our community!

  • MORGAN L.
    Verified Buyer
    Age Range 25-34
    Percentage Grey 10%-20%
    What improvements have you noticed? (Optional) Improved texture, volume, shine, Healthier scalp, Feeling more confident
    How consistent are you with your usage? Daily
    How long have you been using the product? 4-5 months
    3 weeks ago
    Age Range 25-34
    Percentage Grey 10%-20%
    What improvements have you noticed? (Optional) Improved texture, volume, shine, Healthier scalp, Feeling more confident
    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
    The MOST AMAZING scalp serum!

    This is my most favorite part of the Arey product lineup thus far. This is the one that I CANNOT go without. If I don’t put it in after showering then I see a huge difference in the texture, the gray that I have.

    This really has been a game changer for me to feel confident after styling my hair. I don’t see gray’s sticking up or poking out everywhere. Also, I love the spray nozzle that is in it. I use this product most days 2x’s (in and morning and at night)

    Arey
    3 weeks ago

    Thank you for your incredible review, Morgan! We're absolutely thrilled to hear that To The Root Scalp Serum has become your most favorite part of the Arey lineup and that you can't go without it! It's wonderful that you're seeing such a noticeable difference in texture and grey coverage when you use it consistently. We love that it's been a true game changer for your confidence when styling your hair, and it's fantastic that you're not seeing those greys sticking up or poking. We're also so happy you love the spray nozzle design! With your dedication to using it twice daily, we're confident you'll continue seeing these amazing results. We appreciate you being such a valued part of our community and for sharing your incredible experience with us!

Grey Hair Serum FAQs

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

The hair 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 haircare and 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 fewer grey hairs
  • 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 hair 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 grey hair products are vegan, cruelty-free, and gluten-free, and made without silicones, parabens, or synthetic dyes.

Have other questions or need help?