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Not Today, Grey™ — Clinically Studied Grey Hair Supplement

4.3
Rated 4.3 out of 5 stars
714 Reviews

Slows Greys | Supports Repigmentation | Improves Density

Your foundation for long-term hair health. A clinically backed hair supplement that slows grey hair growth, supports repigmentation, and promotes thicker, fuller hair in as little as 3–6 months with daily, consistent use in the early stages of greying. Just two pills a day. Flavorless without aftertaste.

Original price: Sale price: $38.25
$38.25/month

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

Most Popular

Original price: Sale price: $104
$34.66/month

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

Best Value

Original price: Sale price: $195
$32.50/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.

FREE Gifts with Subscription

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 our foundational daily supplement designed to support hair health from within. Formulated with a proprietary blend of antioxidants, vitamins, and minerals, it nourishes hair follicles and helps maintain the natural pigmentation.

Clinically proven to slow grey hair growth, support repigmentation, and promote thicker, fuller hair density in as little as 3–6 months with consistent daily use when paired with To The Root®. Thoughtfully formulated to fit seamlessly alongside most daily multivitamins and wellness routines, it’s an easy daily ritual that’s flavorless, gentle, and has no aftertaste. Physician-formulated.

Heads up: Our packaging has been slightly updated. Please note that some images may show a previous version.

HOW TO USE IT

 

1. Take 2 capsules daily, preferably with food.
2. Expect visible results in 3–6 months with daily use.

Pro Tip: For maximum results, pair with a topical treatment featuring our patented Mela-9® Complex, like To The Root® Scalp Serum or Wash Shampoo.

CLINICAL RESULTS

 

After 6 months using Not Today, Grey™ and To The Root® Scalp Serum:
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.

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.

THE SCIENCE

 

Greys and hair loss aren’t just genetic. Greying is tied to other factors like oxidative stress, nutrient gaps, UV exposure, and environmental stress. Our proprietary blend delivers targeted vitamins, minerals, and antioxidants to help address these factors and support long-term hair color pigmentation preservation.

QUALITY + CERTIFICATIONS

 

Not Today, Grey™ is made in the USA in an NSF-certified, GMP-certified, and FDA-registered facility to ensure quality, safety, and consistency. Every batch is produced to meet the highest manufacturing standards and tested for purity and potency.

These certifications ensure the supplement you take daily meets strict safety and quality standards—so you can trust it to deliver the results you expect.

INGREDIENTS

 

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 and Dyes

Click here to view Supplement Facts
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
714 Reviews

Proven Results

Results may vary

Tested in a Gold Standard Clinical Study with To The Root®

Not Today, Grey™ was studied with To The Root® hair serum, and together 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 It Works

Not Today, Grey™

  • Absorb

    Absorb

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

    Create

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

    Energize

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

    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™

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.
4.3
Rated 4.3 out of 5 stars
Based on 714 reviews
714 reviews
  • Emily R.
    Verified Buyer
    Age Range 47 - 56
    Percentage Grey 20%-30%
    What improvements have you noticed? (Optional) Visible repigmentation
    How consistent are you with your usage? Daily
    How long have you been using the product? 2-3 months
    3 days ago
    Age Range 47 - 56
    Percentage Grey 20%-30%
    What improvements have you noticed? (Optional) Visible repigmentation
    How consistent are you with your usage? Daily
    How long have you been using the product? 2-3 months
    Reviewing
    Not Today, Grey™
    Rated 5 out of 5 stars
    Slowed grey

    Has to do less dying to my hair

    Arey
    2 days ago

    Hi Emily, thank you so much for taking the time to share your experience with Not Today, Grey™! We're thrilled to hear that the supplement has been helping to slow your greys and that you're able to dye your hair less frequently - that's exactly the kind of result we love to hear about.

    Your positive feedback means a lot to us and helps other customers understand the real-world benefits they might experience too.

  • Rojelia T.
    Verified Buyer
    Age Range 47 - 56
    Percentage Grey 0%-10%
    What improvements have you noticed? (Optional) Healthier scalp
    How consistent are you with your usage? A few times a week
    How long have you been using the product? <1 month
    5 days ago
    Age Range 47 - 56
    Percentage Grey 0%-10%
    What improvements have you noticed? (Optional) Healthier scalp
    How consistent are you with your usage? A few times a week
    How long have you been using the product? <1 month
    Reviewing
    Not Today, Grey™
    Rated 5 out of 5 stars
    Amazing

    Regret not buying the shampoo .

    Arey
    2 days ago

    Thank you for your wonderful review, Rojelia! We're so happy to hear that you find Not Today, Grey amazing - that's fantastic! It sounds like you're really loving the results, and we totally understand wanting to try more products from the range. Please check your emails for a message from our co-founder :) We appreciate you being such a valued part of our community and for sharing your experience with us!

  • Michelle K.
    Verified Buyer
    Age Range 35 - 46
    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? 1+ year
    5 days ago
    Age Range 35 - 46
    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? 1+ year
    Reviewing
    Not Today, Grey™
    Rated 5 out of 5 stars
    It totally works

    Been on this supplement for 2 years and my greys are gone, and no new white hairs have emerged. I get comments all the time asking where I get my hair dyed :) I kind of wish this was an MLM because I think I’d be in the elite level based on how many people have asked for info on this supplement. I only use the supplement and that has been plenty!

    Arey
    2 days ago

    Thank you for your incredible review, Michelle! We're absolutely thrilled to hear that you've been using Not Today, Grey for 2 years with such amazing results! We love that you're getting compliments and people are asking where you get your hair dyed - what a wonderful testament to the effectiveness of the supplement. And thank you so much for spreading the word! We appreciate you being such a valued part of our community and for sharing your incredible journey with us!

  • Mikelle H.
    Verified Buyer
    Age Range 35 - 46
    Percentage Grey 0%-10%
    How long have you been using the product? 1+ year
    1 week ago
    Age Range 35 - 46
    Percentage Grey 0%-10%
    How long have you been using the product? 1+ year
    Reviewing
    Not Today, Grey™ One-Month Supply
    Rated 5 out of 5 stars
    Thoughtfully crafted

    Great part of the system. Trusting results will come.

    Arey
    2 days ago

    Thank you for your review, Mikelle. It's fantastic that you're trusting in the process and we're confident that with consistent use, you'll see the amazing results that so many of our customers experience. We appreciate you being such a valued part of our community and for sharing your experience with us!

  • Becky Y.
    Verified Buyer
    Age Range 35 - 46
    What improvements have you noticed? (Optional) Feeling more confident
    How consistent are you with your usage? Daily
    How long have you been using the product? 2-3 months
    1 week ago
    Age Range 35 - 46
    What improvements have you noticed? (Optional) Feeling more confident
    How consistent are you with your usage? Daily
    How long have you been using the product? 2-3 months
    Reviewing
    Not Today, Grey™
    Rated 5 out of 5 stars
    Good vitamins

    I can’t tell if my hair is less grey but these are good vitamins. I can’t sleep if I take them at night, they raise my energy levels too much! Love them.

    Arey
    1 week ago

    Thank you for your wonderful review, Becky! We're so happy to hear that you love Not Today, Grey. Our Co-founder, Trichologist and hairstylist, Jay, will be reaching out to you for a 1:1 consultation, we hope you can connect with him! We appreciate you being such a valued part of our community and for sharing your experience with us!

Grey Hair Supplement FAQs

Not Today, Grey is a daily grey hair 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.

For best results, pair it with To The Root® anti-grey hair serum, which works topically on the scalp to address hair greying at the follicle level.

  • 1–2 months: Healthier scalp and stronger hair foundation.
  • 2–3 months: Fuller, shinier hair and less shedding.
  • 4–6+ months: Visible slowing of new greys and, for many, repigmentation of early greys.

Consistency matters. Take the supplement daily and pair it with To The Root® for the most comprehensive results.

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.

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.

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. Each dose contains less than 20 parts per million (ppm) of gluten, in line with FDA standards for gluten-free products. This level is considered safe even for those with celiac disease.

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

No. Not Today, Grey™ targets terminal hair (like scalp and beard hair), which grows for 3–7 years and is affected by nutrient status. Vellus hair (body hair) grows only 1–2 mm and isn’t influenced in the same way. We have not had reports of increased body hair growth.

Greying is a continuous biological process. If you stop taking the supplement, your hair will gradually turn grey again as its natural greying pattern resumes. Many customers choose to make it part of their long-term hair health routine, similar to skincare or daily vitamins.

  • Take Not Today, Grey™ daily. Ideally at the same time each day to build a steady routine.
  • Pair it with To The Root® serum, which targets greying at the follicle level for a powerful inside-out and outside-in approach.
  • Stick with it for at least 3–6 months to allow your hair’s natural pigment cycle to respond.
  • Support your routine with gentle, nourishing haircare, like our shampoo for grey hair, to protect existing pigment and keep strands healthy.
Have other questions or need help?