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The AM to PM Duo

4.3
Rated 4.3 out of 5 stars
477 Reviews

Slows Greys | Calms Stress | Oil-Free

Your day-to-night duo for combating greys and supporting thicker, fuller hair. To The Root® works to preserve pigment and add volume, while Good Night, Grey® overnight scalp serum is powered by clinically effective peptides designed to slow the signs of aging hair.

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

Original price: $115 Sale price: $97.75
save $17.25

Most Popular

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

Original price: $305 Sale price: $244
$81.33/month
save $61

Best Value

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

Original price: $615 Sale price: $461.25
$76.87/month
save $153.75

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?

 

The AM to PM Duo combines two clinically-backed scalp serums designed to work in sync with your body's natural rhythms:

To The Root® Scalp Serum (AM) is a lightweight, oil-free daytime treatment powered by our patented Mela-9® Complex. It helps slow grey growth, supports new hair growth and density, and adds weightless volume. All with a residue-free finish that won't disrupt your style.

Good Night, Grey® Overnight Scalp Serum (PM) is a nighttime treatment formulated to work while you sleep. It supports melanin production and helps extends the growth phase. Addressing the root causes of greying and thinning when your follicles are most receptive to repair.

Both serums are dermatologist-tested, trichologist-formulated, color-safe, vegan, and free from synthetic fragrances.

WHAT'S INCLUDED?

 

Monthly Supply:

  • To The Root® Scalp Serum (66ml)
  • Good Night, Grey® Overnight Scalp Serum (40ml

3-Month Supply:

  • To The Root® Scalp Serum (180ml)
  • Good Night, Grey® Overnight Scalp Serum (100ml)

6-Month Supply:

  • To The Root® Scalp Serum (2 x 180ml)
  • Good Night, Grey® Overnight Scalp Serum (2 x 100ml)

HOW TO USE

 

To The Root® (AM Formula):

  1. Apply 6 to 8 pumps directly to the scalp on wet or dry hair.
  2. Focus on areas of concern such as the hairline, part, and crown.
  3. Massage gently using your fingertips or the Arey Scalp Brush.
  4. Allow the serum to absorb for about 10 minutes, then style as usual.

Good Night, Grey® (PM Formula):

  1. Shake well before use.
  2. Apply directly to the scalp using the precision nozzle from the hairline to the back of the head. Focus on areas showing greying or thinning.
  3. Massage gently to distribute.Leave in overnight. Do not rinse. Style as usual in the morning.

Pro Tip: For optimal results, pair with the Not Today, Grey™ supplement to support hair health from the inside out. Consistent use for 3-6 months is recommended for visible improvements.

CLINICAL STUDIES

 

To The Root® + Not Today, Grey™ Clinical Study):

  • 88% had fewer or no increase in grey hairs*
  • 3x more people saw fuller, thicker hair with improved shine*
  • -13% decrease in grey hair (active group) vs. +10% increase (placebo)*

Good Night, Grey® Consumer Study:

  • 98% said it's gentle on the scalp**
  • 92% said the product absorbs quickly**
  • 83% reported fewer or no new grey hairs**
  • 80% said their hair looked healthier**
  • 68% said their hair looked fuller**
*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.
**In a 24-week consumer perception study of 117 participants ages 25–65 across diverse ethnicities and all hair types, no adverse reactions were reported.

THE SCIENCE

 

To The Root® (AM Formula): Contains our patented Mela-9® Complex a science-backed blend of a clinically proven peptide and antioxidants that stimulates melanin synthesis and preserves pigment at the follicle.

Key Actives:

  1. Biomimetic Peptide – Stimulates the MC1-R receptor to support repigmentation
  2. Fo-Ti & Sesame Seed Extract – Antioxidants that reduce oxidative stress in the hair bulb
  3. Ginseng, Caffeine, Sichuan Pepper – Provide nourishment, promote cell turnover, and support circulation
  4. Panthenol (B5) – Adds immediate volume while binding moisture and adding shine

Good Night, Grey® (PM Formula): Works with Your Scalp's Circadian Rhythm: At night, cortisol drops and cellular repair peaks. Good Night, Grey® is designed to maximize this overnight window.

Key Actives:

  1. Spirulina Maxima + Chlorella Emersonii Extracts – Improves anagen density and total hair density
  2. Mela-9® Complex (Patented) – Supports melanin synthesis and antioxidant pathways associated with pigment
  3. Red Clover Flower Extract + Acetyl Tetrapeptide-3 – Helps support stronger follicle anchoring for healthier hair growth
  4. 100% Natural Lavender + Eucalyptus – A natural blend of lavender and eucalyptus designed to create a calming nighttime experience.

INGREDIENTS

 

Good Night, Grey®:
Water (Aqua), Trifolium Pratense (Clover) Flower Extract, Acetyl Tetrapeptide-3, Ononis Spinosa Root Extract, Avena Strigosa Seed Extract, Palmitoyl Tetrapeptide-20 Amide, Propanediol, Chlorella Emersonii Extract, Lecithin, Spirulina Maxima Extract, Citrus Reticulata (Tangerine) Fruit Extract, Acetyl Tyrosine, Pentylene Glycol, Gluconolactone, Glycerin, Butylene Glycol, Dextran, Hydroxyethylcellulose, Zanthoxylum Bungeanum Fruit Extract, Humulus Lupulus (Hops) Extract, Sesamum Indicum (Sesame) Seed Extract, Glycine Soja (Soybean) Germ Extract, Wasabia Japonica Leaf Extract, Panax Ginseng Root Extract, Rosmarinus Officinalis (Rosemary) Leaf Extract, Serenoa Serrulata Fruit Extract, Polygonum Multiflorum Root Extract, Arginine, Biotin, Caffeine, Coffea Arabica (Coffee) Seed Extract, Fragrance (Parfum* Lavandula Angustifolia (Lavender) Oil, Eucalyptus Globulus Leaf Oil, Linalyl Acetate and Linalool), Sodium Benzoate, 1,2-Hexanediol, Caprylyl Glycol

Contains: Sesame

Made with 100% natural fragrance from Eucalyptus and Lavender*

*Fragrance derived from raw materials meeting ISO 9235

To The Root®:
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
477 Reviews

Proven Results

Results may vary

How it works

To The Root® Scalp 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® Scalp Serum

Good Night, Grey®

  • Slow Greys

    Slow Greys

    The Mela-9® Complex stimulates melanin synthesis and preserves pigment pathways at the follicle, helping hair keep its natural color.
  • De-Stress

    De-Stress

    Spirulina Maxima + Chlorella Emersonii Extracts address scalp stress, supporting anagen density and total hair density in subjects with stress-related telogen effluvium.
  • Strengthen & Grow

    Strengthen & Grow

    Red Clover Flower Extract and a biomimetic peptide supports the anagen (growth) phase, follicle anchoring, leading to fuller-looking hair.
  • Absorb Overnight

    Absorb Overnight

    This oil-free and residue-free overnight serum fully absorbs while you sleep. No rinse, no weigh-down. Wake up and go.
  • Scent with a Purpose

    Scent with a Purpose

    A 100% natural lavender and eucalyptus blend to signal calm to your nervous system as part of a sleep ritual. Lower cortisol at night means healthier hair over time.
Good Night, Grey®
4.3
Rated 4.3 out of 5 stars
Based on 477 reviews
477 reviews
  • Mariah L.
    Verified Buyer
    3 days ago
    Reviewing
    To The Root® Scalp Serum
    Rated 5 out of 5 stars
    Genuinely good products

    I've been using the shampoo/conditioner/ and serum for about a year and find it to be a great product line. My hair volume and texture has overall improved and I have noted a handful of repigmented hairs over the past year. The rate at which I was losing color has slowed down. This product isn't going to drastically change your color but it does seem to help! I was using pretty good quality products before this too which surprises me the most about the results with the switch. This is worth it if you have room in your hair care budget!

    Arey
    3 days ago

    Thank you for your wonderful review, Mariah! We're so thrilled to hear that you've been seeing such great results with our product line over the past year. It's fantastic that you've noticed improvements in your hair volume and texture, and that the rate of color loss has slowed down. We really appreciate you being such a valued part of our community and for sharing your experience with us!

  • Isabelle R.
    Verified Reviewer
    4 days ago
    Reviewing
    Good Night, Grey®
    Rated 5 out of 5 stars
    Fabulous

    I love Arey and have been using their other scalp serum. This is a relaxing nighttime ritual. It’s fabulous!

    Arey
    3 days ago

    Thank you for your wonderful review, Isabelle! We're so thrilled to hear that Good Night, Grey® has become such a fabulous part of your nighttime ritual and that you're loving it along with To The Root. We really appreciate you being such a valued part of our community and for sharing your experience with us!

  • 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
    2 weeks 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
    2 weeks 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
    2 weeks 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
    2 weeks 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
    2 weeks 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
    2 weeks 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!

FAQs

Good Night, Grey® is the first-ever overnight treatment designed specifically for aging hair. It works with your scalp’s natural circadian rhythm to reduce stress-related damage, support pigment production, and strengthen follicles—while you sleep.

Think of it as night cream for your scalp.

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

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

Both products target greying at the scalp, but at different times and through different mechanisms.  

  • To The Root® is a daily, daytime serum focused on reducing oxidative stress and supporting pigment at the follicle during waking hours.
  • Good Night, Grey® is a nighttime-only treatment designed to support pigment pathways and fuller-looking hair.

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.

Independent clinical studies on key ingredients in Good Night, Grey® demonstrated measurable improvements in pigment, density, and follicle health:

  • 88% improvement in the ratio of active growth to shedding phase with Red Clover Flower Extract + Acetyl Tetrapeptide-3*
  • 25.9% increase in anagen density and 11% improvement in density with Spirulina & Chlorella Extract Complex
  • 47% of participants saw fewer white hairs in 3 months with Palmitoyl Tetrapeptide-20 Amide**
  • 41% increase in melanin levels in grey hair after 4 months with Ononis Spinosa & Avena Strigosa Extracts
*Based on Capixyl rinse-off data
**Consumer self-assessment

With consistent nightly use, most people begin seeing visible improvements within 3–6 months, including:

  • Fewer new greys
  • Thicker, fuller hair growth
  • Reduced shedding
  • Softer, shinier strands

As with all hair biology, results depend on consistency and where you are in the greying process.

To The Root®️ (AM Routine):
Apply 6 to 8 pumps directly to the scalp on wet or dry hair. Focus on areas of concern such as the hairline, part, and crown. Massage gently using your fingertips or the Arey Scalp Brush. Allow the serum to absorb for about 10 minutes, then style as usual.

Good Night, Grey®️ (PM Routine):
Shake well before use. Apply directly to the scalp using the precision nozzle from the hairline to the back of the head. Focus on areas showing greying or thinning. Massage gently to distribute. Leave in overnight. Do not rinse. Style as usual in the morning.

Yes. Good Night, Grey® is color-safe and does not contain dyes or pigments. It supports your hair’s natural color rather than altering it.

Yes. The formulas are lightweight and suitable for all hair types and textures, including fine, wavy, curly, and chemically treated hair.

Yes. Good Night, Grey® is vegan, cruelty-free, dermatologist-tested, and scented with 100% natural lavender and eucalyptus for a calming nighttime ritual.

Have other questions or need help?