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The Dream Duo

4.3
Rated 4.3 out of 5 stars
792 Reviews

Slows Greys | Supports Repigmentation | Improves Density

Good Night, Grey® works overnight to support melanin production at the root while Not Today, Grey™ works at the cellular level to reduce greys and promote thicker, fuller hair. Together they address greying from every angle for results you can see and feel in as little as 3-6 months.

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

Original price: $107 Sale price: $90.95
save $16.05

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

Original price: $295 Sale price: $236
$78.66/month
save $59

Best Value

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

Original price: $590 Sale price: $442.50
$73.75/month
save $147.50

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?

 

Not Today, Grey™ is your daily internal foundation. Taken just twice a day, this physician-formulated supplement delivers a clinically backed blend of vitamins, minerals, and antioxidants that nourish follicles, support natural pigment production, and promote thicker, fuller hair. Flavorless. No aftertaste. Easy to add to any routine.

Good Night, Grey® is an overnight scalp serum designed for aging hair and pigment support. It works by supporting the scalp, addressing stress-related damage, improve pigment production, and strengthen follicles, all while you sleep. Think of it as night cream for your scalp.

Used together, they target greying at two levels: internally with consistent cellular nourishment, and topically overnight. The result is a system designed to work harder than either product could alone.

Physician-formulated. Clinically studied. Two pills and a few drops. That's it.

WHAT'S INCLUDED?

 

Monthly Supply:

  • Not Today, Grey™ Daily Supplement (60 Capsules)
  • Good Night, Grey® Overnight Scalp Serum (40ml)

3-Month Supply:

  • Not Today, Grey™ Daily Supplement (180 Capsules)
  • Good Night, Grey® Overnight Scalp Serum (100ml)

6-Month Supply:

  • Not Today, Grey™ Daily Supplement (360 Capsules)
  • Good Night, Grey® Overnight Scalp Serum (2 x 100ml)

HOW TO USE

 

Not Today, Grey™ Daily Supplement:

  1. Take 2 Not Today, Grey™ capsules, preferably with food.

Good Night, Grey® Overnight Serum:

  1. Shake Good Night, Grey® well.
  2. Apply directly to the scalp using the precision nozzle, focusing on areas of concern.
  3. Massage gently with fingertips or the Arey Scalp Brush to distribute evenly.
  4. Do not rinse. Let the formula work overnight.

Pro Tips:

  1. Keep both products visible on your counter. Habits form faster when they're easy to see.
  2. Breathe in the calming lavender + eucalyptus scent of Good Night, Grey® as part of your nighttime ritual.

CLINICAL STUDIES

 

Not Today, Grey™ + To The Root® 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

 

Not Today, Grey™: The only supplement clinically proven to slow grey hair growth—formulated with a targeted blend of vitamins, minerals, and antioxidants that nourish follicles and support natural pigment production at the cellular level.

Key Actives:

  1. Fo-Ti (He Shou Wu) – Traditional botanical used to support natural hair pigment and follicle health
  2. Biotin, Zinc & B Vitamins – Core nutritional support for keratin production, follicle strength, and healthy hair growth
  3. Antioxidant Blend (Vitamins C & E) – Neutralizes oxidative stress that accelerates greying and follicle aging

Good Night, Grey® Overnight Serum: 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

Not Today, Grey™:
Vitamin D (D3 Cholecalciferol), Vitamin B6 (Pyridoxine HCI), Folate, Vitamin B12 (Methylcobalmin), Biotin, Pantothenic Acid (D-Calcium Pantothenate), Calcium (Calcium Carbonate), Iron (Ferrous Fumarate), Selenium (Selenomethionine), Copper (Copper Gluconate)
Proprietary Blend: PABA (Para-Aminobenzoic Acid), Black Sesame Seed Extract, Fo-Ti Root.
Other Ingredients: Hypromellose, Rice Flour, Magnesium Stearate, Silica

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
792 Reviews

Proven Results

Results may vary

How it works

Not Today, Grey™

  • Absorb

    Vitamins B6 and B9 optimize body function, setting a foundation for Arey's other ingredients to take effect.
  • Create

    Vitamin B5 promotes cell turnover and Selenium builds a defense against free radicals.
  • Energize

    Vitamin B12 and the Chinese herb Fo Ti fuel Melanin production, while Iron supports the production of red blood cells.
  • Protect

    Paba, Vitamin D & Copper help to protect your natural hair from premature grey, while Vitamin B7 improves the protein structure of hair.
Not Today, Grey™

Good Night, Grey®

  • Slow Greys

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

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

    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®

How to Use

How to use Not Today, Grey™ supplement
Not Today, Grey™ addresses grey hair from the inside-out.

HOW TO USE:
  • Taking two Not Today, Grey™ supplements each day supplies the body with the vitamins, minerals and antioxidants that support production of natural hair pigmentation at the cellular level.
  • Tip: Take the supplement after a meal, instead of on an empty stomach.
How to apply Good Night, Grey® overnight scalp serum
HOW TO USE:
  • Shake well before each use.
  • Apply directly to the scalp using the precision nozzle. Start from the front of the hairline to the back of your head, focusing on areas of concern like your hairline, natural part, crown, and any visible greying or thinning.
  • Massage gently with your fingertips or the Arey Scalp Brush to distribute the formula evenly and support absorption.
  • Do not rinse. Apply before bed and allow the formula to work overnight. Wake up and style as usual — no morning wash required.

PRO TIPS:
  • Keep the bottle on your nightstand or bathroom counter. Visible reminders build lasting habits.
  • Use the Arey Scalp Brush before applying to gently part hair and prep the scalp, then again after to stimulate blood circulation.
  • Take a moment to breathe in the lavender and eucalyptus scent as part of your nighttime wind-down.

Backed by Science, Trusted by Experts

Physician-formulated and tested in the world's first double-blind clinical study on greying hair.

Physician formulated, trichologist approved, dermatologist tested
  • DERMATOLOGIST TESTED

    “Arey represents a modern, science-driven approach to aging hair. The brand bridges dermatology and beauty—focusing not just on appearance, but on long-term health and function.”

    Dr. Hadley King, MD, FAAD
    Cosmetic and Medical Dermatology

  • SCIENTIST APPROVED

    “Arey’s System sets a new benchmark for clinical evidence in the beauty industry. This level of scientific rigor is what builds real trust in a product's claims.”

    Dr. Julian Sass, PhD
    Cosmetic Scientist

  • DERMATOLOGIST TESTED

    “Preventative care isn’t just for skin, it applies to hair too. Arey built a category around the early signs of hair aging, targeting those factors with a science-first approach to help maintain stronger, healthier-looking hair over time.”

    Dr. Mona Mislankar, MD, FAAD
    Dermatology

  • PHYSICIAN FORMULATED

    “It is encouraging to know that we can have a positive impact on greying and aging hair and that consumers, physicians, and hair stylists now have a choice in managing aging hair.”

    Dr. Kenneth Conrad MD
    FACP & Arey Chief Medical Advisor

  • PHYSICIAN APPROVED

    “Arey takes a preventative approach. It’s a product line rooted in science and clinical backing — something I respect as a physician and would recommend to patients who want to look and feel their best.”

    Dr. Damon Raskin MD
    Internal Medicine

  • OB/GYN APPROVED

    “What makes Arey different is the scientific focus and clinical rigor. Many supplements can disrupt hormones or aren’t clinically backed. Arey is thoughtful, clean, and rooted in research.”

    Dr. Shahin Ghadir MD, OB/GYN
    Reproductive Endocrinology + Infertility

  • CHEMIST APPROVED

    “What sets Arey apart is their commitment to rigorously testing the efficacy of their products. They don’t just talk about the science, but back it up through well-designed clinical trials and testing.”

    Valerie George
    Cosmetic Chemist

  • TRICHOLOGIST APPROVED

    “Our research represents a significant leap forward in addressing grey hair, blending our deep understanding of haircare with cutting-edge science.”

    Jay Small
    Arey Co-Founder & Trichologist

  • PURPOSE DRIVEN

    “What started as a personal journey to find a proactive solution for my aging hair with my hairstylist and now co-founder, Jay Small, has become a completely new category in haircare that we are proud to say is clinically validated.”

    Allison Conrad
    Arey Co-Founder & CEO

1 of 9
4.3
Rated 4.3 out of 5 stars
Based on 792 reviews
792 reviews
  • Jordan M.
    Verified Buyer
    Age Range 35 - 46
    Percentage Grey 0%-10%
    What improvements have you noticed? (Optional) Improved texture, volume, shine, Healthier scalp, Less new grey hair, Feeling more confident
    How consistent are you with your usage? Daily
    How long have you been using the product? 1+ year
    23 hours ago
    Age Range 35 - 46
    Percentage Grey 0%-10%
    What improvements have you noticed? (Optional) Improved texture, volume, shine, Healthier scalp, Less new grey hair, Feeling more confident
    How consistent are you with your usage? Daily
    How long have you been using the product? 1+ year
    Reviewing
    Not Today, Grey™
    Rated 5 out of 5 stars
    The sooner you start the better!

    Have been using this product for quite some time, and I think it's great for maintaining or even improving your hair color. My hair feels fuller too!

    Arey
    11 minutes ago

    Thank you for your wonderful review, Jordan! We're so glad to hear that you've been using Not Today, Grey™ for quite some time and that it's working great for maintaining and even improving your hair color. It's fantastic that you're also noticing your hair feeling fuller too! We really appreciate you being such a valued part of our community and for sharing your experience with us!

  • Daya D.
    Verified Buyer
    Age Range 35 - 46
    Percentage Grey 0%-10%
    What improvements have you noticed? (Optional) Less new grey hair, Feeling more confident, Improved texture, volume, shine
    How consistent are you with your usage? Daily
    How long have you been using the product? 6-11 months
    5 days ago
    Age Range 35 - 46
    Percentage Grey 0%-10%
    What improvements have you noticed? (Optional) Less new grey hair, Feeling more confident, Improved texture, volume, shine
    How consistent are you with your usage? Daily
    How long have you been using the product? 6-11 months
    Reviewing
    Not Today, Grey™
    Rated 5 out of 5 stars
    Great product, if used consistently!

    Great product, if used consistently! Improved the volume and health of my hair and i have found less greys!

    Arey
    10 minutes ago

    Thank you for your wonderful review, Daya! We're so glad to hear that you've been using Not Today, Grey consistently and that you're seeing such great results with improved volume and health of your hair, plus finding less greys! It's fantastic that you're committed to using the product regularly and noticing these benefits. We really appreciate you being such a valued part of our community and for sharing your experience with us!

  • Michael M.
    Verified Buyer
    5 days ago
    Reviewing
    Good Night, Grey®
    Rated 5 out of 5 stars
    Hair looks great

    It slowed, and maybe even somewhat reversed, the graying.

    Arey
    10 minutes ago

    Thank you for your wonderful review, Michael! We're so thrilled to hear that Good Night, Grey has slowed down the graying process and that you're even seeing some reversal. It's fantastic that your hair is looking great! We really appreciate you being such a valued part of our community and for sharing your experience with us!

  • Shantel S.
    Verified Buyer
    Age Range 25 - 34
    Percentage Grey 0%-10%
    What improvements have you noticed? (Optional) Improved texture, volume, shine, Visible repigmentation, Less new grey hair
    How consistent are you with your usage? Daily
    How long have you been using the product? 6-11 months
    1 week ago
    Age Range 25 - 34
    Percentage Grey 0%-10%
    What improvements have you noticed? (Optional) Improved texture, volume, shine, Visible repigmentation, Less new grey hair
    How consistent are you with your usage? Daily
    How long have you been using the product? 6-11 months
    Reviewing
    Not Today, Grey™
    Rated 5 out of 5 stars
    This really works

    I’m 30 and started getting more grey hairs. I’ve been taking this for at least 6 months now and I can literally see the pigment returning to the roots of the grey hairs. This is magic and really actually works. I started to see results after 3 months so consistency is key.

    Arey
    9 minutes ago

    Thank you for your wonderful review, Shantel! We're so thrilled to hear that you've been taking Not Today, Grey consistently for 6 months and that you're actually seeing the pigment returning to the roots of your grey hairs. It's amazing that you stuck with it and started noticing results after 3 months - you're absolutely right that consistency is key! We really appreciate you being such a valued part of our community and for sharing your experience with us!

  • Michelle F.
    Verified Buyer
    Age Range 47 - 56
    Percentage Grey 0%-10%
    What improvements have you noticed? (Optional) Healthier scalp, Less new grey hair, Improved texture, volume, shine, Visible repigmentation, Feeling more confident
    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 0%-10%
    What improvements have you noticed? (Optional) Healthier scalp, Less new grey hair, Improved texture, volume, shine, Visible repigmentation, Feeling more confident
    How consistent are you with your usage? Daily
    How long have you been using the product? 1+ year
    Reviewing
    Not Today, Grey™
    Rated 5 out of 5 stars
    Staple in my haircare

    I have been taking this for years and have recently added the serum. I am 49 years old and have very dark brown/almost black hair. I do not dye my hair and love that I can support my natural pigment with Arey!

    Arey
    9 minutes ago

    Thank you for your wonderful review, Michelle! We're so thrilled to hear that Not Today, Grey has become such a staple in your haircare routine over the years, and that you've recently added the serum to your regimen. It's fantastic that you're loving the ability to support your natural pigment and keep your beautiful dark brown hair looking its best without dyeing it. We really appreciate you being such a valued part of our community and for sharing your experience with us!

FAQs

Good Night, Grey® is an overnight scalp serum designed for aging hair and pigment support. It works by supporting the scalp, addressing stress-related damage, improve pigment production, and strengthen follicles, all while you sleep. Think of it as night cream for your scalp.

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.

No! Unlike many scalp serums, Good Night, Grey® is completely oil-free. Once dry, 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.

Not Today, Grey™ is a daily supplement that delivers a targeted blend of vitamins, minerals, and antioxidants that support your hair’s natural pigment production from the inside out. By replenishing key nutrients that decline with age and oxidative stress, it helps slow new grey growth and, in many cases, repigment early greys. Many users also notice thicker, fuller, shinier hair over time.

Yes. Every ingredient in Not Today, Grey™ is within the tolerable upper intake level for adults. Our medical and scientific advisors review each ingredient for safety and efficacy. As with any supplement, we recommend checking with your healthcare provider—especially if you take other vitamins or medications.

Not Today, Grey™ is produced in the USA in an NSF-certified, GMP-certified, and FDA-registered facility. Each batch is tested for purity and potency to ensure safety, consistency, and quality, so you can trust what you’re taking daily.

Yes. Not Today, Grey™ is made in the USA in an NSF-certified, GMP-certified, and FDA-registered facility. Every batch is tested for purity and potency, ensuring that the supplement you take daily meets the highest standards for quality, safety, and consistency. These certifications mean you can trust the ingredients and results.

The FDA does not “approve” dietary supplements. However, our manufacturing facilities are FDA-registered and meet rigorous NSF and GMP standards for safety and quality.

Yes, in most cases. The formula was designed to complement common multivitamins, but we recommend consulting your healthcare provider to ensure the combination remains within safe intake levels for your body.

Yes. Not Today, Grey™ was clinically tested with our day time serum, To The Root®. 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.

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.

As with any supplement, we recommend speaking with your doctor before starting Not Today, Grey™ if you’re pregnant or breastfeeding.

Out of an abundance of caution, we do not recommend using Good Night, Grey® during pregnancy or while nursing.

Our other topical formulas such as To The Root®, Wash shampoo and Scrub can help support scalp and hair health during periods like postpartum shedding, when hair needs extra care and consistency.

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. Not Today, Grey™ is vegan and cruelty-free.

Have other questions or need help?