---
product_id: 184499278
title: "OUAI Thick Shampoo - Moisturizing Shampoo with Keratin, Marshmallow Root, Shea Butter, Avocado Oil for Thick Hair - Strengthens & Hydrates Strands - Paraben, Phthalate & Sulfate Free (10 Fl Oz)"
brand: "ouai"
price: "€ 65.90"
currency: EUR
in_stock: true
reviews_count: 13
category: "Ouai"
url: https://www.desertcart.nl/products/184499278-ouai-thick-shampoo-moisturizing-shampoo-with-keratin-marshmallow-root-shea
store_origin: NL
region: Netherlands
---

# Keratin + Marshmallow Root for frizz control Deep hydration with Shea Butter Avocado Oil prevents breakage OUAI Thick Shampoo - Moisturizing Shampoo with Keratin, Marshmallow Root, Shea Butter, Avocado Oil for Thick Hair - Strengthens & Hydrates Strands - Paraben, Phthalate & Sulfate Free (10 Fl Oz)

**Brand:** ouai
**Price:** € 65.90
**Availability:** ✅ In Stock

## Summary

> ✨ Elevate your wash day to a luxe ritual with OUAI Thick Shampoo!

## Quick Answers

- **What is this?** OUAI Thick Shampoo - Moisturizing Shampoo with Keratin, Marshmallow Root, Shea Butter, Avocado Oil for Thick Hair - Strengthens & Hydrates Strands - Paraben, Phthalate & Sulfate Free (10 Fl Oz) by ouai
- **How much does it cost?** € 65.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/184499278-ouai-thick-shampoo-moisturizing-shampoo-with-keratin-marshmallow-root-shea)

## Best For

- ouai enthusiasts

## Why This Product

- Trusted ouai brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Frizz-Free Confidence:** Marshmallow root tames flyaways and detangles, so you own every look.
- • **Clean Beauty, No Nasties:** Paraben, phthalate & sulfate free for a gentle yet effective cleanse.
- • **Effortless Luxury Routine:** Salon-quality results at home—cut styling time and boost hair health with every wash.
- • **Nourish Without Compromise:** Shea butter and avocado oil deliver rich moisture without heaviness or residue.
- • **Hydrate & Strengthen Every Strand:** Keratin-infused formula smooths and fortifies thick hair for resilient shine.

## Overview

OUAI Thick Shampoo is a moisturizing, keratin-enriched formula designed specifically for thick hair. It combines marshmallow root, shea butter, and avocado oil to strengthen, hydrate, and smooth strands while fighting frizz. Free from parabens, phthalates, and sulfates, this shampoo offers a gentle yet effective cleanse that supports healthy, manageable hair. Perfect for professionals seeking a high-performance, clean beauty haircare essential that transforms wash day into a self-care moment.

## Description

desertcart.com : OUAI Thick Shampoo - Moisturizing Shampoo with Keratin, Marshmallow Root, Shea Butter, Avocado Oil for Thick Hair - Strengthens & Hydrates Strands - Paraben, Phthalate & Sulfate Free (10 Fl Oz) : Beauty & Personal Care

Review: A staple in my shower - I’ve been using OUAI Medium Shampoo, and it’s officially a staple in my shower. This shampoo is the perfect balance—it cleans deeply without stripping, and leaves my hair feeling soft, light, and fresh instead of dry or heavy. The scent is clean, luxe, and salon-level good without being overpowering. It makes washing my hair feel like a mini self-care moment rather than a chore. A little goes a long way so start small and work your way up as needed. Final verdict: If you want healthy-looking, bouncy, clean hair that still feels moisturized and touchable, this shampoo delivers. Worth every drop.
Review: Great for Color- and Keratin-Treated Hair — And Much More Cost-Effective in the Refill Size - I bought the OUAI Medium Shampoo Refill because I needed something gentle enough for color-treated and keratin-treated hair, and it has worked really well for me. It cleans thoroughly without stripping, and leaves my hair feeling soft, smooth, and healthy. The formula has just the right balance—rich enough to nourish my hair, but not heavy or greasy. The scent is light, clean, and really pleasant, and it pairs perfectly with the matching conditioner. One of my favorite things about this refill is how cost-effective it is. You get a much larger amount for the price, and it’s more eco-friendly since it uses far less plastic than buying multiple bottles. If there’s a minor downside, it’s that using too much can feel a little rich, so a smaller amount works best—especially if you have finer hair. But overall, this shampoo has been a great option for maintaining both my color and keratin treatment. Overall: High-quality shampoo, gentle on treated hair, great scent, and a smart buy in the larger refill size. I’ll definitely keep repurchasing.

## Features

- Rich, Moisturizing Shampoo - Been dreading this all week? This hair strengthening shampoo calms dry, thick hair while fighting frizz and smoothing every strand so you can look forward to wash day.
- Moisture So Rich You'll Need a Prenup - This keratin shampoo fights frizz and tames flyaways with the help of marshmallow root to detangle and prevent hair from coiling. Shea butter delivers deep hydration while avocado oil coats your hair to prevent breakage.
- OUAI Means Yes - In that casual Parisian way. OUAI is about being better IRL. It's about having honest conversations with our community. It's about letting go of unrealistic expectations and embracing your imperfections.
- Made For Effortless Routines - All OUAI hair care products including our thick hair shampoo and conditioner are carefully crafted to cut styling time and nourish your hair health. We put the good stuff in our anti-frizz hair products and leave the bad stuff out, without ever sacrificing quality.
- Live Life Your OUAI - OUAI offers luxury hair products like this sulfate-free shampoo at affordable prices that are user-friendly — no glam squad needed. Wet hair, lather up and rinse clean. Follow up with OUAI Thick Conditioner. Moisture all the OUAI up.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B084BY8DQP |
| Best Sellers Rank | #1,352 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #39 in Hair Shampoo |
| Customer Reviews | 4.5 4.5 out of 5 stars (5,453) |
| Is Discontinued By Manufacturer  | No |
| Item model number  | 2534 |
| Manufacturer  | Ouai |
| Product Dimensions  | 2.5 x 5.5 x 2.5 inches; 12.64 ounces |
| UPC  | 815402021283 |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** OUAI
- **Hair Type:** Thick, Straight, Wavy, Curly, textured-hair
- **Item Form:** Liquid
- **Scent:** Mercer Street

## Images

![OUAI Thick Shampoo - Moisturizing Shampoo with Keratin, Marshmallow Root, Shea Butter, Avocado Oil for Thick Hair - Strengthens & Hydrates Strands - Paraben, Phthalate & Sulfate Free (10 Fl Oz) - Image 1](https://m.media-amazon.com/images/I/51UCxLmgKJL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ A staple in my shower
*by A***. on November 28, 2025*

I’ve been using OUAI Medium Shampoo, and it’s officially a staple in my shower. This shampoo is the perfect balance—it cleans deeply without stripping, and leaves my hair feeling soft, light, and fresh instead of dry or heavy. The scent is clean, luxe, and salon-level good without being overpowering. It makes washing my hair feel like a mini self-care moment rather than a chore. A little goes a long way so start small and work your way up as needed. Final verdict: If you want healthy-looking, bouncy, clean hair that still feels moisturized and touchable, this shampoo delivers. Worth every drop.

### ⭐⭐⭐⭐⭐ Great for Color- and Keratin-Treated Hair — And Much More Cost-Effective in the Refill Size
*by L***N on November 16, 2025*

I bought the OUAI Medium Shampoo Refill because I needed something gentle enough for color-treated and keratin-treated hair, and it has worked really well for me. It cleans thoroughly without stripping, and leaves my hair feeling soft, smooth, and healthy. The formula has just the right balance—rich enough to nourish my hair, but not heavy or greasy. The scent is light, clean, and really pleasant, and it pairs perfectly with the matching conditioner. One of my favorite things about this refill is how cost-effective it is. You get a much larger amount for the price, and it’s more eco-friendly since it uses far less plastic than buying multiple bottles. If there’s a minor downside, it’s that using too much can feel a little rich, so a smaller amount works best—especially if you have finer hair. But overall, this shampoo has been a great option for maintaining both my color and keratin treatment. Overall: High-quality shampoo, gentle on treated hair, great scent, and a smart buy in the larger refill size. I’ll definitely keep repurchasing.

### ⭐⭐⭐⭐⭐ On must have list
*by A***R on January 9, 2026*

Great shampoo. Love the added biotin and collagen. Makes my hair look so shiney and silky. Also my hair smells beautiful.

## Frequently Bought Together

- OUAI Thick Shampoo - Moisturizing Shampoo with Keratin, Marshmallow Root, Shea Butter, Avocado Oil for Thick Hair - Strengthens & Hydrates Strands - Paraben, Phthalate & Sulfate Free (10 Fl Oz)
- OUAI Medium Conditioner - Hydrating Hair Conditioner with Coconut Oil, Babassu Oil, and Keratin - Strengthens, Repairs and Adds Shine - Paraben and Phthalate Free Hair Care Products (10 Oz)
- OUAI Detox Shampoo - Clarifying Shampoo for Build Up, Dirt, Oil, Product and Hard Water - Apple Cider Vinegar & Keratin for Clean, Refreshed Hair - Sulfate-Free Hair Care (10 oz)

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---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-12*