In Stock
OUAI

Thick Hair Shampoo

4.5 · 1199 reviews
from 3,398 ₽

What it is: For thick hair, this color-safe shampoo cleanses & deeply moisturizes while strengthening & fighting frizz. It also leaves hair smelling amazing. Hair Type: Straight, Wavy, Curly, and CoilyHair Texture: ThickHair Concerns:- Frizz- Dryness- Damage, Split Ends, and BreakageKey Benefits: - Strengthens and adds shine- Hydrates and eliminates frizz- Repairs and detanglesFormulation: GelHighlighted Ingredients:- Marshmallow Root Extract: Softens, moisturizes, and detangles.- Shea Butter: Hydrates and locks in moisture.- Avocado Oil: Prevents breakage and strengthens.Ingredient Callouts: Free of sulfates SLS and SLES, parabens, formaldehydes, formaldehyde-releasing agents, phthalates, mineral oil, retinyl palmitate, oxybenzone, coal tar, hydroquinone, triclosan, and triclocarban. This product is also cruelty-free, gluten-free, and comes in recyclable packaging.What Else You Need to Know: Get rich quick with a Thick Hair Shampoo that cleanses & deeply hydrates thick strands. It detangles & strengthens to prevent breakage while fighting frizz. Plus, it’s scented with Mercer Street, a luxe fragrance with notes of Italian lemon, jasmine, and white musk to leave hair smelling amazing.

Design: 10 oz/ 300 mL

International delivery

Shipping calculated at checkout

Returns & exchanges

Within 30 days of delivery

What it is: For thick hair, this color-safe shampoo cleanses & deeply moisturizes while strengthening & fighting frizz. It also leaves hair smelling amazing. Hair Type: Straight, Wavy, Curly, and CoilyHair Texture: ThickHair Concerns:- Frizz- Dryness- Damage, Split Ends, and BreakageKey Benefits: - Strengthens and adds shine- Hydrates and eliminates frizz- Repairs and detanglesFormulation: GelHighlighted Ingredients:- Marshmallow Root Extract: Softens, moisturizes, and detangles.- Shea Butter: Hydrates and locks in moisture.- Avocado Oil: Prevents breakage and strengthens.Ingredient Callouts: Free of sulfates SLS and SLES, parabens, formaldehydes, formaldehyde-releasing agents, phthalates, mineral oil, retinyl palmitate, oxybenzone, coal tar, hydroquinone, triclosan, and triclocarban. This product is also cruelty-free, gluten-free, and comes in recyclable packaging.What Else You Need to Know: Get rich quick with a Thick Hair Shampoo that cleanses & deeply hydrates thick strands. It detangles & strengthens to prevent breakage while fighting frizz. Plus, it’s scented with Mercer Street, a luxe fragrance with notes of Italian lemon, jasmine, and white musk to leave hair smelling amazing.

Customer reviews

1.0
verified purchase
dryness that looks like psoriasis

Bought this by mistake over the detox shampoo. I come back to it every once and a while when my other shampoo runs out and everytime it messes up my scalp. It makes it super dry and flaky. Scalp looks red like psoriasis with major tiny white flakes in my hair. Once I return back to the detox shampoo this goes away mostly. Tonight was the 3rd or 4th time so I finally pieced it together that this was the cause. My only known negative reaction is to lanolin (caused rosacea like rashes and itchiness) which isn't listed as an ingredient so I'm not sure what else could be causing the similar reaction.

5/21/2026
5.0
verified purchase
must have

super great! I love how soft it makes my hair and I love the smile. It gives me such a good clean, especially because I have a long thick hair and leaves my hair smelling like I just left the salon. Love it

2/10/2026
5.0
verified purchase
Ouai

I finally found a really good shampoo and conditioner. It makes my hair soft and smell nice and helps with the frizz.

1/18/2026
1.0
verified purchase
don’t buy it

ended up returning after one wash, i have curly/wavy hair and it made my hair feel incredibly dry. so disappointing.

12/30/2025
1.0
verified purchase
Dont reccomend

I received this product in exchange for my honest review. I have used ouai products & have loved them . But this duo was very disappointing for me. The shampoo has so many harsh ingredients including red4 & yellow6. The fragrance is too harsh & the shampoo is so drying. I would not recommend purchasing this product.

12/15/2025
4.0
verified purchase
Hair felt clean and voluminous.

I had the pleasure of trying out the Thick Shampoo and have been really enjoying my experience. For reference I have medium-thick hair with oily scalp and occasional dandruff. My routine usually consists of washing twice a week. When subbing this product in my routine, I found the lather to be great. My hair felt clean and slightly voluminous when air-dried. I think if you’re in the market to trying this out, go for it. I personally don’t think I would repurchase due to the price.

12/12/2025
5.0
verified purchase

My hair has been LOVING this. I have thick curly hair and this is just what it needed. My hair is visibly softer, more hydrated and an added bonus is it smells amazing too! Big fan of this it’s so good!

12/10/2025
5.0
verified purchase
Love it

Loved how this OUAI shampoo worked on my curls. It lathered beautifully and left my hair soft, clean, and defined without dryness. A new favorite in my curly-hair routine! Super hydrating overall and it smells amazing

12/10/2025
5.0
verified purchase
Great shampoo

This is such a great thickening shampoo. I have been using this shampoo for my thick frizzy hair and absolutely love that that it lathers well my hair and leaves it feeling clean, smooth and manageable. My hair has been looking so much fuller and less frizzy. My hair has been looking so much healthier since using this shampoo.

12/9/2025
5.0
verified purchase

I accidentally bought this after I made a mistake trying to order Olaplex. Boy am I glad that I did! I have super thick hair, and this makes it so soft, not frizzy at all. I usually use either Olaplex or the Oribe Hair alchemy, and this stuff is just as good if not better. Love to have another to add to the rotation!

7/3/2026