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OUAI Thick Hair Shampoo and Conditioner 16 fl oz pump bottles displayed together.
Exclusive
OUAI Thick Hair Shampoo and Conditioner bottles drenched in water splashing dramatically.
Before and after comparison of a woman with curly dark brown hair, showing the effect of a hair product. The top image is labeled 'BEFORE' and shows the hair as slightly frizzy; the bottom image is labeled 'AFTER' and shows the hair as smoother and more defined.
Before-and-after comparison of a woman with shoulder-length brown hair, showing a straighter, smoother look in the top photo labeled BEFORE and a softer, slightly wavy look in the bottom photo labeled AFTER, on a light beige background.
OUAI Thick Hair Shampoo with marshmallow root, avocado oil, and shea butter.
OUAI Thick Hair Conditioner bottle in a clean white design, surrounded by text callouts highlighting ingredients like marshmallow root, avocado oil, and shea butter, with abstract white and gray liquid swirls in the background.
Woman washing curly hair with shampoo lather under shower water droplets
Woman combing wet curly hair with OUAI wide-tooth comb, profile view.
OUAI Thick Hair Shampoo and Conditioner 16 fl oz pump bottles displayed together.
Exclusive
OUAI Thick Hair Shampoo and Conditioner bottles drenched in water splashing dramatically.
Before and after comparison of a woman with curly dark brown hair, showing the effect of a hair product. The top image is labeled 'BEFORE' and shows the hair as slightly frizzy; the bottom image is labeled 'AFTER' and shows the hair as smoother and more defined.
Before-and-after comparison of a woman with shoulder-length brown hair, showing a straighter, smoother look in the top photo labeled BEFORE and a softer, slightly wavy look in the bottom photo labeled AFTER, on a light beige background.
OUAI Thick Hair Shampoo with marshmallow root, avocado oil, and shea butter.
OUAI Thick Hair Conditioner bottle in a clean white design, surrounded by text callouts highlighting ingredients like marshmallow root, avocado oil, and shea butter, with abstract white and gray liquid swirls in the background.
Woman washing curly hair with shampoo lather under shower water droplets
Woman combing wet curly hair with OUAI wide-tooth comb, profile view.

Thick Hair Shampoo & Conditioner Jumbo Set

A set featuring jumbo sizes of our Thick Hair Shampoo & Conditioner. This wash day routine is made just for thick hair types to nourish, hydrate & detangle for hair that’s smoother, softer & frizz-free.

Each bottle gives you 60% more product & comes with an easy-to-use pump.

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Choose a free sample at checkout with every order

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The shampoo & conditioner you love, now 60% bigger & with easy-to-use pumps. 

This color-safe, deeply hydrating shampoo & conditioner set now comes with easy-to-use pumps.

Made to nourish & hydrate thick hair types using shea butter, softening marshmallow root, strengthening avocado oil & frizz-fighting hydrolyzed keratin. 

It also smells amazing thanks to Mercer Street—a luxe fragrance with notes of Italian lemon, jasmine, & white musk. 

How to use

Thoroughly wet hair from roots to ends.
Add one pump of THICK SHAMPOO in hands. Work into roots and anywhere hair touches the scalp.
Add an additional pump anywhere hair is not fully covered. 
Rinse shampoo. Squeeze out excess moisture before applying conditioner.
Add one pump of THICK CONDITIONER into hands, applying with a focus on midshaft and ends.
Rinse with cold water to close the hair cuticle and add shine.

ingredients

Thick Hair Shampoo: 
Aqua (Water, Eau), Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Sodium Methyl Cocoyl Taurate, Cocamide Mipa, Glycol Distearate, Parfum (Fragrance), Cetrimonium Chloride (Anti-Static Agent/Agent Antistatique), Panthenol, Hydrolyzed Keratin, Avena Sativa (Oat) Peptide, Butyrospermum Parkii (Shea) Butter, Althaea Officinalis Root Extract, Persea Gratissima (Avocado) Oil, Glycerin, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Peg-150 Distearate, Sodium Lauroyl Glycinate, Amodimethicone, C11-15 Pareth-7, Laureth-9, Trideceth-12, Polyquaternium-7, Cocoglucosides Hydroxypropyltrimonium Chloride, Acrylates Copolymer, Sodium Chloride, Sodium Hydroxide, Tetrasodium Edta, Disodium Edta, Citric Acid, Peg-200 Hydrogenated Glyceryl Palmate, Peg-7 Glyceryl Cocoate, 1,2-Hexanediol, Caprylyl Glycol, Benzoic Acid, Potassium Sorbate, Phenoxyethanol, Sodium Benzoate, Benzyl Alcohol, Benzyl Salicylate, Limonene, Hexyl Cinnamal, Ci 14700 (Red 4), Ci 15985 (Yellow 6)

Thick Hair Conditioner: 
Aqua (Water, Eau), Cetearyl Alcohol, Behentrimonium Chloride (Anti-Static Agent/Agent Antistatique), Parfum (Fragrance), Cetrimonium Chloride (Anti-Static Agent/Agent Antistatique), Panthenol, Hydrolyzed Keratin, Persea Gratissima (Avocado) Oil, Althaea Officinalis Root Extract, Dimethicone, Amodimethicone, Butyrospermum Parkii (Shea) Butter, Polyquaternium-37, Dicaprylyl Carbonate, Lauryl Glucoside, Divinyldimethicone/Dimethicone Copolymer, C11-15 Pareth-7, Laureth-9, Glycerin, Trideceth-12, C12-13 Pareth-23, C12-13 Pareth-3, Dimethiconol, Propoxytetramethyl Piperidinyl Dimethicone, Trideceth-6, Ethylhexylglycerin, Tocopherol, Isopropyl Alcohol, Guar Hydroxypropyltrimonium Chloride, Citric Acid, Sodium Chloride, Sorbitan Oleate, Sodium Hydroxide, Acetic Acid, Sodium Acetate, Phenoxyethanol, Potassium Sorbate, Benzyl Salicylate, Limonene, Hexyl Cinnamal.

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Thick Hair Shampoo & Conditioner Jumbo Set

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THE SCENT:
MERCER STREET

TOP NOTES

Italian lemon, orange, peony, iris, lily

MIDDLE NOTES

Magnolia, jasmine, rose damask

BASE NOTES

Musk, orris

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Overall rating: 4.6879163 / 5 from 1051 reviews.

AI Generated Review Summary

Summary topics

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Review highlights

Reviews

Best shampoo ever

"The best shampoo for thick wavy hair, that gently but effectively cleans my scalp and gets rid of any grit, and oil. Smells amazing too! This is the only shampoo that doesn’t dry out my scalp or make it oily. Perfect balance of everything. Keeps my hair so soft and shiny"

— Rachael S. (5/5)

Love this conditioner! My hair

"Love this conditioner! My hair feels amazing after using it with the shampoo! It rinses out easy and leaves my hair feeling so soft! I have curly, thick, coarse hair but this makes it feel amazing! I haven’t noticed as much frizz either!"

— Melanie F. (5/5)

Love it! Little problem.

"This shampoo is perfect but the pump on the conditioner did not work!"

— Ann P. (5/5)

Smells great

"I was hoping a little would go a long way but with thick coarse hair it took a lot to get a comb through it so price wise it’s not a good match for me"

— Lana M. (4/5)

"Has been a game changer for my hair"

— Christina (5/5)

"Im a frequent buyer"

— Regina (5/5)

Love this shampoo! It lathers

"Love this shampoo! It lathers so well and I like the smell!"

— Melanie F. (5/5)

It’s nice

"It’s nice smells good, lathered decent. I prefer the clean feeling of the detox shampoo better"

— Lana M. (4/5)

"Everything about these products are perfect!"

— Beth (5/5)

"Absoultely amazing"

— Christina (5/5)

Q&A