Lineup product photo of the Arey Deep Treatment Duo on a cream background. Left: Wash shampoo bottle (250ml) — a gentle cleansing shampoo for stimulating and preserving pigment, all hair types. Right: Masque tube (200ml) — a deep conditioning treatment to protect, hydrate and restore.

Close-up of soap bubbles and creamy white liquid spread across a smooth surface, forming a textured and abstract pattern—evoking the rich nourishment of Arey’s The Deep Treatment Duo, an ideal choice for those looking for an effective deep conditioner designed to help delay greys.

Side-by-side comparison of curly hair labeled Before and After. The Before hair appears dry and frizzy, while the After side shows more defined and moisturized curls after using Arey’s The Deep Treatment Duo. Text at bottom right reads, Unretouched. No AI.

Two Arey products from The Deep Treatment Duo—WASH and MASQUE—are shown on a wet surface. Text highlights the benefits: The Deep Treatment Duo by Arey helps delay greys, deeply hydrates dry hair with its nourishing deep conditioner, is silicone-free and residue-free, uses skincare-grade ingredients, and features a color-safe formula.

A bottle labeled Arey with bubbles on its cap is pictured alongside ingredient descriptions for The Deep Treatment Duo, a wash shampoo formulated with biomimetic peptide, botanical antioxidants, ginseng root, and caffeine—key components designed to delay greys and provide nourishment when used with the deep conditioner.

An open tube of Arey’s The Deep Treatment Duo rests on a light surface, with its rich, creamy formula smeared nearby. A chart displays key ingredients and their benefits—shea butter, apricot kernel oil, sunflower seed extract, and silagel—carefully formulated to deeply nourish hair and help delay greys for a revitalized appearance.

A graphic highlighting the benefits of Arey’s Mela-9 Complex in The Deep Treatment Duo: strengthens hair strands, slows greys, and protects the scalp, with molecule illustrations and descriptive text on a light background—perfect to pair with your favorite deep conditioner or as part of Arey’s Deep Treatment Duo for optimal results.

Diagram of a hair strand with dotted lines connecting it to labels: lifestyle, air pollution, bleach + color, hormonal changes, nutrient deficiencies, stress, lack of sleep, diet changes, chemical services, UV damage. Regular use of a deep conditioner or Arey’s The Deep Treatment Duo can help nourish your hair and may delay greys caused by these everyday stressors.

Introducing The Deep Treatment Duo by Arey: this deep conditioner features four highlighted ingredients—sliced grapefruit, sage leaves, cedar twig, and a splash of coconut milk. Above the ingredient list, we emphasize our clean ingredient mandate and highlight that our formula is free from synthetic fragrance. Developed as part of The Deep Treatment Duo collection by Arey, this nourishing treatment supports hair health and helps delay the appearance of greys for vibrant-looking strands over time.

Four Arey hair care products—Not Today, Grey, Wash, and Masque—are displayed with their step numbers and benefits highlighted. These include pigment preservation to delay greying, effective cleansing, breakage reduction, deep conditioning with a rich formula, and the nourishing power of Arey’s signature Deep Treatment Duo.

A minimal, neutral-toned scene shows a hand squeezing white cream from a tube beside a bottle labeled Arey—both part of The Deep Treatment Duo, designed to delay greys. Highlighted text notes the duo is silicone-free, sulfate-free, vegan, color-safe, and formulated in California.

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The Deep Treatment Duo

Name: The Deep Treatment Duo
Brand: Arey
SKU: AR-MASQUE-DUO-BOXED
Price: 87.0 USD
Availability: InStock
Rating: 4.5 (248 reviews)

4.5

Rated 4.5 out of 5 stars

248 Reviews

Preserves Pigment | Reduces Shedding | Medium to Coarse Hair

Deeply cleanse, hydrate, and restore with The Deep Treatment Duo. This set pairs Wash Shampoo to proactively delay greys with Masque Deep Conditioner to nourish, soften, and strengthen. Ideal for medium, coarse, or damaged hair.

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WHAT IS IT?

The Deep Treatment Duo pairs Wash Shampoo — powered by our patented Mela-9® Complex to preserve pigment while cleansing and balancing the scalp — with Masque Deep Conditioner, which restores softness, shine, and strength without the heaviness or buildup of traditional deep conditioners. This clean, silicone-free formula reduces visible breakage, tames frizz, and supports elasticity for healthier hair over time. Color-safe, dermatologist-tested and hypoallergenic.

100% natural cedar + sage scent; made without silicones, sulfates, parabens, phthalates, synthetic fragrance, PEG, formaldehyde, or dyes.

WHAT'S INCLUDED?

Full-Size Wash Shampoo (8.45 fl. oz. / 250mL)
Full Size Masque Deep Conditioner (6.76 fl. oz / 200mL)

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

HOW TO USE

1. Cleanse with Wash Shampoo. Massage into scalp; rinse thoroughly. Use 3–5× per week.
2. Apply Masque Deep Conditioner generously from mid-lengths to ends. Rinse.

Wash is sulfate-free and concentrated, so the suds are naturally smaller. For a richer, creamier lather, mix with a little water in your hands before applying.

Pro Tip: To prioritize slowing greys and support repigmentation, pair with Not Today, Grey™ and use both consistently for 3–6 months.

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

Masque Deep Conditioner
Water (Aqua), Butyrospermum Parkii (Shea) Butter, Glycerin, Helianthus Annuus (Sunflower) Seed Oil, Cetyl Alcohol, Stearyl Alcohol, Behentrimonium Chloride, Hydrogenated Castor Oil/Sebacic Acid Copolymer, Phospholipids, Panthenol, Polyquaternium-73, Fragrance (Parfum)*, Prunus Armeniaca (Apricot) Kernel Oil, Coco-Caprylate/Caprate, Squalane, Argania Spinosa Kernel Oil, Citrullus, Lanatus (Watermelon) Seed Oil, Sodium Hyaluronate, Panax Ginseng Root Extract, Coffee Arabica (Coffee) Seed Extract, Nigella Sativa Seed Oil, Glycine Soja (Soybean) Germ Extract, Wasabia Japonica Leaf Extract, Zanthoxylum Bungeanum Fruit Extract, Humulus Lupulus (Hops) Flower Extract, Sesamum Indicum (Sesame) Seed Extract, Polygonum Multiflorum (Fo-Ti) Root Extract, Caffeine, Biotin, Lysolecithin, Polyglyceryl-10 Pentahydroxystearate, Butylene Glycol, Hydrolyzed Barley Protein, Guar Hydroxypropyltrimonium Chloride, Ethylhexylglycerin, Sodium Benzoate, Potassium Sorbate, C9-12 Alkane, Xanthan Gum, Lecithin, Sclerotium Gum, Pullulan, Cetrimonium Chloride

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

4.5

Rated 4.5 out of 5 stars

248 Reviews

Proven Results

BEFORE

AFTER

Side-by-side comparison of curly hair: the left side shows dry, frizzy curls, while the right side shows defined, healthy curls with vibrant color.

Unretouched. No AI.

"I always struggle to find a conditioner for my hair texture and my love of bleach. Masque makes my hair feel better after each use."

- Autumn J.
The Deep Treatment Duo

BEFORE

AFTER

Unretouched. No AI.

"Hands down, made my hair feel great after just one use."

- Laura R.
The Deep Treatment Duo

BEFORE

AFTER

Unretouched. No AI.

"Yes, I am still grey, but Arey has made my hair so much darker, like 3 or 4 shades darker. I'm impressed!"

- Michelle W.
3 Months The System + Wash

BEFORE

AFTER

Unretouched. No AI.

"I've been struggling with dry hair my whole life. Masque helped it look and feel healthier without buildup. I love this product!"

- Nicole P.
The Deep Treatment Duo

BEFORE

AFTER

Side-by-side comparison of the back of a persons blonde hair, showing wavy and frizzy texture on the left and smooth, straight hair on the right.

Unretouched. No AI.

"I have fine hair but I dye it monthly. This made my hair feel soft, smooth, but not weighed down."

- Kristin R.
The Deep Treatment Duo

BEFORE

AFTER

Unretouched. No AI.

"Since hitting perimenopause, my hair became very dry and wiry. This shampoo has made my hair feel so much softer."

- Soy K.
Wash

Results may vary

Backed by Science, Trusted by Experts

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

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

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4.5

Rated 4.5 out of 5 stars

Based on 248 reviews

Write a Review (Opens in a new tab)

248 reviews

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MORGAN L.
Verified Buyer
Yesterday
Reviewing
Masque Deep Conditioner
Rated 5 out of 5 stars
The Masque:
I use this at least 1 time a week. It doesn’t take much and I leave it in for 3-5 minutes while showering and it helps my hair to be very soft and shiny. I really love this product and it’s become another staple in my Arey lineup.
Was this helpful?
Arey
4 minutes ago
Thank you for your wonderful review, Morgan! We're thrilled to hear that Masque Deep Conditioner has become such a staple in your Arey lineup. It's fantastic that you're using it weekly and seeing such great results with your hair feeling so soft and shiny. We really appreciate you being such a valued part of our community and for sharing your experience with us!
AMY J.
Verified Buyer
1 month ago
Reviewing
Wash Shampoo Refill
Rated 5 out of 5 stars
Love it
Love this shampoo and love the value and ease of the refill!
Was this helpful?
Arey
1 month ago
Thank you for your wonderful review, Amy! We're so thrilled you love the Wash Shampoo Refill and that you're enjoying both the value and the ease of use. We really appreciate you being such a valued part of our community and for sharing your experience with us!
Lisa F.
Verified Buyer
2 months ago
Reviewing
Wash Shampoo Refill
Rated 5 out of 5 stars
Seems to be Working
I'm 55 and just starting to see a few gray hairs and it seems like the new hair coming in is not gray. Will keep using.
Was this helpful?
Arey
2 months ago
Thank you for your wonderful review, Lisa! We're so happy to hear that you're seeing such positive results with Wash Shampoo and that the new hair coming in isn't grey! It's fantastic that you're noticing this difference, and we're confident that with continued use you'll keep seeing these amazing benefits. We appreciate you being such a valued part of our community and for sharing your experience with us!
april n.
Verified Buyer
2 months ago
Reviewing
Wash Shampoo
Rated 5 out of 5 stars
This really works!
I have used this consistently since 2024 and there is no question that it is holding off the grays. In my mid 40s with only a handful of grays and I am certain Arey Shampoo and Conditioner are helping make that happen!
Was this helpful?
Arey
2 months ago
Thank you for your incredible review, April! We're thrilled to hear that Wash Shampoo and Smooth Conditioner are working so well for you and that you're seeing such amazing results in holding off the greys after consistent use since 2024! It's wonderful that you're only seeing a handful of greys in your mid 40s, and we're so happy that our products are playing a part in helping make that happen. Your dedication to using them consistently is fantastic, and we're confident you'll continue seeing these incredible benefits. We appreciate you being such a valued part of our community and for sharing your amazing experience with us!
Martha B.
Verified Buyer
2 months ago
Reviewing
Wash Shampoo
Rated 5 out of 5 stars
Wonderful! It works well
It's better than anything I have ever used!
Was this helpful?
Arey
2 months ago
Thank you for your wonderful review, Martha! We're absolutely thrilled to hear that Wash Shampoo is working so well for you and that it's better than anything you've ever used, that's an incredible compliment! We appreciate you being such a valued part of our community and for sharing your amazing experience with us!

FAQs

The Duo combines two powerful steps: Wash Shampoo, which features the Mela-9™ Complex — a blend of a clinically-efficacious peptide, antioxidants, and botanical extracts designed to slow grey growth, preserve natural pigment, and repigment greys over time, while gently cleansing the scalp without over-stripping. The Masque complements Wash by delivering deeply nourishing hydration, smoothing, strengthening, and improving hair texture—especially helpful for greys, chemically processed, heat-styled, or coarse/dry strands. When used together, you get both scalp/pigment benefits and restorative moisture/texture benefits.

With consistent use of the Duo, many users see improvements in softness, shine, manageability, and hair strength within the first few washes. Texture of grey hairs will often feel softer more quickly. Slowing of greys is more gradual — it depends on things like percentage of grey, genetics, stress, overall health, and how consistently you use the regimen (including supplement support if used).

That depends on your hair's condition. For normal or mildly dry hair, using Wash every time you shampoo (which may be a few times per week) and following with Masque once a week (or when hair feels especially dry/damaged) provides a great maintenance/regeneration schedule. If you have medium+, coarse, dry, or very damaged hair, Masque can replace your regular conditioner and be used after every wash for full benefit. Adjust based on how soft, hydrated, and manageable your hair feels.

Yes. Wash Shampoo is formulated without sulfates, parabens, phthalates, synthetic dyes, and harsh chemicals; it’s color-safe and gentle even on keratin-treated hair. Masque similarly avoids heavy buildup and is silicone-free, so it complements Wash’s gentler cleansing. For sensitive scalps, both should be tolerable, though as with any new product, doing a patch test is recommended.

Yes. Using Wash alone will target scalp health, gentle but thorough cleansing, and the pigment-preserving effects of the Mela-9 Complex. Using Masque alone will deeply hydrate, improve softness and texture. The real benefit of the Duo is synergy: Wash cleanses and primes hair + scalp, helping active ingredients reach where they can work best; Masque seals in hydration, smooths, and improves resilience. Together you get both pigment support + strong, healthy, touchable hair.

It can. Wash Shampoo, via its Mela-9 Complex, is designed to slow grey growth and preserve or repigment existing greys over time. Masque won’t repigment greys itself, but it helps greatly with how grey hair feels and looks (texture, brittleness, dryness). If your goal is to more proactively address greying, the Duo works best when paired with the Not Today, Grey™ daily supplement.

For Wash Shampoo: wet hair thoroughly, massage into scalp, let the lather sit on your scalp for a minute or two before rinsing — this gives the Mela-9® Complex time to interact. For Masque: after washing, apply from mid-length to ends, leave on for 3-5 minutes for regular conditioning; longer (up to 10 min) when hair is especially dry or damaged.

Have other questions or need help?

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The Deep Treatment Duo