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The Inside-Out Set

4.4
Rated 4.4 out of 5 stars
1,000 Reviews

Slows Greys | Improves Density | Cleanses & Softens

Your inside-out routine for aging hair. A clinically backed supplement pairs with a pigment-preserving, color-safe shampoo and hydrating conditioner to slow grey hair growth, support repigmentation, and promote thicker, fuller hair in as little as 3–6 months with daily, consistent use in the early stages of greying.

WHAT IS IT?

 

A three-piece routine that pairs our foundational daily supplement with a pigment-preserving, color-safe shampoo and lightweight conditioner. Not Today, Grey feeds follicles from within with a physician-formulated blend of vitamins, minerals, and antioxidants that help defend natural pigment. An easy daily ritual that’s flavorless, gentle, and with no aftertaste. Wash Shampoo delivers our patented Mela-9® Complex (antioxidants + a clinically proven peptide) to the scalp in a sulfate-free, creamy lather that lifts buildup without stripping. Smooth Conditioner finishes with lightweight, strand-strengthening hydration that reduces breakage and locks in moisture for slip, shine, and an air-dry that doesn’t fall flat. Use daily and consistently. Most see visible improvements in 3–6 months, especially in the early stages of greying. Color-safe, dermatologist-tested, and hypoallergenic.

WHAT'S INCLUDED?

 

1-Month Supply of Not Today, Grey Daily Supplement (60 Capsules)
Full-Size Wash Shampoo (8.45 fl. oz. / 250mL)
Full Size Smooth Conditioner (8.45 fl. oz / 250mL)

Please note: This set does not come pre-kitted in a box. All items are packaged separately.

HOW TO USE

 

1. Take two tablets of Not Today, Grey daily, preferably with food.
2. Cleanse with Wash Shampoo. Massage into scalp; rinse thoroughly. Use 3–5× per week.
3. Hydrate with Smooth Conditioner. Apply mid-lengths to ends; rinse.

Most see visible improvements in 3–6 months with consistent use, especially in early-stage greying.

STUDY RESULTS

 

After 6 months using Not Today, Grey with To The Root®:
88% saw a decrease in new grey hair growth
13% decrease in grey growth vs +10% on placebo
more participants reported thicker, fuller hair with enhanced shine

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.

After using Wash Shampoo and Smooth Conditioner:
94% reported improved hair
83% said hair felt softer
77% reported fewer new greys

Based on a 24-Week Consumer Perception Study to assess the efficacy of Arey Wash & Smooth on hair health and greying on 35 participants by an independent research team.

QUALITY + CERTIFICATIONS

 

The Inside-Out Set’s supplement component, 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

 

Wash Shampoo
Water (Aqua), Cocamidopropyl Betaine, Sodium Lauroyl Methyl Isethionate, Sodium Cocoyl Isethionate, Glycerin, Butylene Glycol, Avena Strigosa Seed Extract, Ononis Spinosa Root Extract, Palmitoyl Tetrapeptide 20 Amide, Citrus Reticulata (Tangerine) Extract, Panthenol, Fragrance (Parfum)*, Amodimethicone, Hydrolyzed Barley Protein, Coffea Arabica (Coffee) Seed Extract, Panax Ginseng Root Extract, Zanthoxylum Bungeanum Fruit Extract, Humulus Lupulus (Hops) Flower Extract, Sesamum Indicum (Sesame) Seed Extract, Wasabia Japonica Leaf Extract, Polygonum Multiflorum (Fo-Ti) Root Extract, Biotin, Caffeine, Glycine Soja (Soybean) Germ Extract, Sodium Benzoate, Potassium Sorbate, Ethylhexylglycerin, Guar Hydroxypropyltrimonium Chloride, Citric Acid, Acetyl Tyrosine, Pentylene Glycol, Gluconolactone, Sodium Benzoate

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

Smooth Conditioner
Water (Aqua), Cetyl Esters, Cetyl Alcohol, Stearyl Alcohol, Sorbitol, Caprylic/Capric Triglyceride, Cetrimonium Chloride, Panthenol, Helianthus Annuus (Sunflower) Seed Extract, Squalane, Argania Spinosa Kernel Oil, Citrullus Lanatus (Watermelon) Seed Oil, Coco-Caprylate/Caprate, C9-12 Alkane, Fragrance (Parfum)*, Butyrospermum Parkii (Shea) Butter, Amodimethicone, Simmondsia Chinensis (Jojoba) Seed Oil, Hydrolyzed Barley Protein, Coffea Arabica (Coffee) Seed Extract, Glycerin, Panax Ginseng Root Extract, Zanthoxylum Bungeanum Fruit Extract, Humulus Lupulus (Hops) Flower Extract, Sesamum Indicum (Sesame) Seed Extract, Glycine Soja (Soybean) Germ Extract, Butylene Glycol, Wasabia Japonica Leaf Extract, Polygonum Multiflorum (Fo-Ti) Root Extract, Biotin, Caffeine, Isopropyl Myristate, Sodium PCA, Stearamidopropyl Dimethylamine, Behentrimonium Methosulfate, Potassium Sorbate, Sodium Benzoate, Tocopherol, Ethylhexylglycerin, Citric Acid

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

Not Today, Grey Daily Supplement
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

4.4
Rated 4.4 out of 5 stars
1,000 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 hair from premature grey, while Vitamin B7 improves the protein structure of hair.
4.4
Rated 4.4 out of 5 stars
Based on 1,000 reviews
1,000 reviews
  • Tyler S.
    Verified Buyer
    Age Range 25 - 34
    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? 2-3 months
    3 days ago
    Age Range 25 - 34
    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? 2-3 months
    Reviewing
    Not Today, Grey
    Rated 5 out of 5 stars
    Great product

    Love this supplement

    Arey
    Yesterday

    Thank you for your wonderful review, Tyler! We're so thrilled to hear that you love Not Today, Grey and that it's working well for you. We appreciate you being a valued member of our community and look forward to continuing to provide you with exceptional haircare solutions tailored to your needs.

  • Nadia P.
    Verified Buyer
    Age Range 35 - 46
    Percentage Grey 10%-20%
    What improvements have you noticed? (Optional) Improved texture, volume, shine, Less new grey hair
    How consistent are you with your usage? Daily
    How long have you been using the product? 1+ year
    6 days ago
    Age Range 35 - 46
    Percentage Grey 10%-20%
    What improvements have you noticed? (Optional) Improved texture, volume, shine, 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
    Be patient, takes time

    I have been using this for a year now and feel like I finally am visibly noticing results. I have not noticed any new greys for awhile and I feel like overall my hair feels and looks much healthier. Super easy to take 2 everyday along with the rest of my vitamins.

    Arey
    Yesterday

    Thank you for your wonderful review, Nadia! We're so thrilled to hear that after a year of consistent use, you're seeing visible results with Not Today, Grey. It's fantastic that you're not noticing any new greys and that your hair feels and looks much healthier overall. You're absolutely right that patience is key with our products, and we love hearing about the long-term benefits from dedicated customers like yourself. We're glad it fits easily into your daily vitamin routine too! We appreciate you being a valued member of our community and look forward to continuing to provide you with exceptional haircare solutions tailored to your needs.

  • Catherine J.
    Verified Buyer
    1 week ago
    Reviewing
    The Shower Duo
    Rated 5 out of 5 stars
    Shower Duo

    My hair texture is the most notably changes, and this is worth it for me!

    Arey
    Yesterday

    Thank you for your wonderful review, Catherine! We're so thrilled to hear that The Shower Duo has made such a noticeable difference in your hair texture and that you're finding it worth it. It's fantastic when our customers experience those kind of positive changes that make them feel great about their hair. We appreciate you being a valued member of our community and look forward to continuing to provide you with exceptional haircare solutions tailored to your needs.

  • Kimwana D.
    Verified Buyer
    1 week ago
    Reviewing
    Not Today, Grey
    Rated 5 out of 5 stars
    Seeing results

    I’ve been taking Arey for about 4 months now and the gray around my temples has decreased. It’s actually working!

    Arey
    Yesterday

    Thank you for your wonderful review, Kimwana! We're so thrilled to hear that you're seeing results with Not Today, Grey after 4 months of consistent use and that the graey around your temples has decreased. It's fantastic that you're experiencing the kind of positive changes we love to hear about from our customers. We appreciate you being a valued member of our community and look forward to continuing to provide you with exceptional haircare solutions tailored to your needs.

  • Rachael C.
    Verified Buyer
    1 week ago
    Reviewing
    The Shower Duo
    Rated 5 out of 5 stars
    Love this combo!

    My hair feels so healthy, it smells great and the conditioner leaves my hair feeling so smooth!

    Arey
    Yesterday

    Thank you for your wonderful review, Rachael! We're so thrilled to hear that you love The Shower Duo and that it's delivering such fantastic results for you. It's wonderful that you're noticing how healthy your hair feels and that you're loving both the great scent and the smooth finish from the conditioner. We appreciate you being a valued member of our community and look forward to continuing to provide you with exceptional haircare solutions tailored to your needs.