---
product_id: 291715726
title: "Fine to Medium Hair Treatment Mask- Deep Conditioning Hair Mask (8 oz)"
brand: "ouai"
price: "¥12533"
currency: JPY
in_stock: true
reviews_count: 13
category: "Ouai"
url: https://www.desertcart.jp/products/291715726-fine-to-medium-hair-treatment-mask-deep-conditioning-hair-mask
store_origin: JP
region: Japan
---

# Clean, cruelty-free formula sans parabens & sulfates Hydrates fine-to-medium hair without heaviness Strengthens & repairs with hydrolyzed keratin Fine to Medium Hair Treatment Mask- Deep Conditioning Hair Mask (8 oz)

**Brand:** ouai
**Price:** ¥12533
**Availability:** ✅ In Stock

## Summary

> ✨ Say OUAI to hair that shines as bright as your ambition!

## Quick Answers

- **What is this?** Fine to Medium Hair Treatment Mask- Deep Conditioning Hair Mask (8 oz) by ouai
- **How much does it cost?** ¥12533 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/291715726-fine-to-medium-hair-treatment-mask-deep-conditioning-hair-mask)

## 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

- • **Parisian Chic in a Jar:** OUAI means ‘yes’ to effortless, everyday luxury—join the movement of bold, vibrant hair that speaks volumes.
- • **Clean Beauty, Bold Living:** Cruelty-free, gluten-free, and free from parabens, phthalates, SLS/SLES—because your hair care should be as conscious as your lifestyle.
- • **Power Trio for Hair Health:** Shea butter, panthenol, and hydrolyzed keratin team up to smooth, strengthen, and repair damage for resilient, frizz-free locks.
- • **Salon-Quality Deep Conditioning:** Use once or twice weekly to transform dry, brittle hair into silky, shiny strands that turn heads and boost confidence.
- • **Lightweight Hydration, Zero Grease:** Delivers moisture and shine without weighing hair down—perfect for fine-to-medium strands craving softness and manageability.

## Overview

OUAI Fine to Medium Hair Treatment Mask is an 8 oz lightweight deep conditioning mask formulated with shea butter, panthenol, and hydrolyzed keratin to hydrate, strengthen, and repair fine-to-medium hair. This clean, cruelty-free formula is free from parabens, phthalates, and sulfates, delivering salon-quality moisture and shine without heaviness or greasiness. Ideal for professionals seeking manageable, frizz-free hair with a touch of Parisian luxury.

## Description

desertcart.com: OUAI Fine to Medium Hair Treatment Mask- Deep Conditioning Hair Mask (8 oz) | Lightweight Deep Conditioning Hair Mask with Shea Butter, Keratin & Panthenol - Helps Hydrate, Strengthen & Repair Damage : Beauty & Personal Care

Review: My hair is silky smooth again!! - My hair is thin and straight and this product brought my hair back to life, from dry, frizzy and brittle to hydrated, smooth, shiny,soft and showing ZERO frizz, the fragrance is good and not overwhelming, the mask is expensive but it's totally worth it, I'm feeling confident to wear my hair down again!!
Review: Perfect! Soft, Shiny Hair Instantly - This hair mask is magic. I've tried hair masks from Fino, Moroccanoil, Amika, and more, and truly none can compare to this one. Leaves hair feeling soft and shiny without making my hair feel greasy or heavy. Lasts a long time if used once or twice a week (as suggested). Even though it's quite expensive to buy full-price, I think how long it lasts makes up for it (but it does go on sale 2-3x a year)!

## Features

- Hydration That Won’t OUAI You Down - This lightweight hair conditioner mask delivers moisture and shine to fine-to-medium strands, leaving your hair soft, manageable, and never greasy.
- Smooth Operator - Packed with shea butter, panthenol, and hydrolyzed keratin to smooth, strengthen, and repair without the heavy baggage—aka your new go-to hair mask for damaged hair.
- Deep Repair, Clean Ingredients - This deep conditioner is cruelty-free, gluten-free, and made without parabens, phthalates, SLS, or SLES—because your hair care routine should feel as good as it performs.
- How to Use - Pair this luxe hair moisturizer with your favorite OUAI shampoo, comb it through mid-lengths to ends, and rinse with cool water to seal in shine.
- OUAI Means Yes - In that casual Parisian way. OUAI is about saying “yes OUAI” to living boldly. We strive to be something you reach for everyday, so wherever you go, you can go all the OUAI.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08WGD6R81 |
| Active Ingredients | Shea Butter, Panthenol, Hydrolyzed Keratin |
| Additional Features | Moisturizing, Nourishing, Smoothing |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #4,780 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #27 in Hair Treatment Masks |
| Brand | OUAI |
| Brand Name | OUAI |
| Customer Reviews | 4.6 out of 5 stars 2,491 Reviews |
| Hair Conditioner Type | Hair Conditioning Mask |
| Hair Type | Fine |
| Item Dimensions | 3.5 x 3.5 x 2.75 inches |
| Item Form | Cream |
| Item Highlight | Lightweight Deep Conditioning Hair Mask with Shea Butter, Keratin & Panthenol - Helps Hydrate, Strengthen & Repair Damage |
| Item Weight | 8 ounces |
| Liquid Volume | 8 |
| Manufacturer | OUAI |
| Manufacturer Part Number | FG-0409-A-00 |
| Material Feature | Paraben Free, Phthalate Free, Sulfate Free |
| Material Features | Paraben Free, Phthalate Free, Sulfate Free |
| Material Type Free | Paraben Free |
| Model Number | OUA-409-CAN |
| Number of Items | 1 |
| Package Type Name | Jar |
| Product Benefits | Moisturizing |
| Recommended Uses For Product | Conditioning |
| Scent Name | Melrose Place |
| Size | 8 Ounce (Pack of 1) |
| Special Ingredients | Shea Butter, Hydrolyzed Keratin, Panthenol |
| UPC | 815402024093 |
| Unit Count | 8 Ounce |

## Product Details

- **Brand:** OUAI
- **Hair Type:** Fine
- **Item Form:** Cream
- **Material Feature:** Paraben Free, Phthalate Free, Sulfate Free
- **Product Benefits:** Moisturizing

## Images

![Fine to Medium Hair Treatment Mask- Deep Conditioning Hair Mask (8 oz) - Image 1](https://m.media-amazon.com/images/I/51SaX3Qs9WL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Do i apply the mask after conditioning hair or before?**
A: After cleansing, rinse hair with warm water. Remove excess water from hair. Apply a quarter size amount starting from the ends and working to the roots. Comb product through with fingers or wide tooth comb. Chill out for 5 minutes, then rinse with cool water.
Avoid contact with eyes. If contact occurs, rinse well with water.
NO CONDITIONING REQUIRED, THIS MASK TAKES CARE OF IT COMPLETELY. THANKS!

**Q: Can I use this product one day and my next hair wash day still use my olaplex? I know they perform in two separate ways, just want to make sure**
A: I do

**Q: Does it make fine hair even thinner?**
A: I did not find that at all.  I have fine-medium hair, and I find it stops frizz without weighing down my hair.

**Q: Does this come packed at all? The one I got was just the container with the plastic cap inside?**
A: I ordered 2 and they were both just a lid and a plastic inner lid. When I opened it, it didn’t look like it had been used I was concerned too.

## Customer Reviews

### ⭐⭐⭐⭐⭐ My hair is silky smooth again!!
*by H***E on August 22, 2026*

My hair is thin and straight and this product brought my hair back to life, from dry, frizzy and brittle to hydrated, smooth, shiny,soft and showing ZERO frizz, the fragrance is good and not overwhelming, the mask is expensive but it's totally worth it, I'm feeling confident to wear my hair down again!!

### ⭐⭐⭐⭐⭐ Perfect! Soft, Shiny Hair Instantly
*by C***E on July 4, 2026*

This hair mask is magic. I've tried hair masks from Fino, Moroccanoil, Amika, and more, and truly none can compare to this one. Leaves hair feeling soft and shiny without making my hair feel greasy or heavy. Lasts a long time if used once or twice a week (as suggested). Even though it's quite expensive to buy full-price, I think how long it lasts makes up for it (but it does go on sale 2-3x a year)!

### ⭐⭐⭐⭐⭐ My hair is finally smooth again
*by A***L on August 28, 2026*

Worth the price. I use this once a week to every other week and have been for over 5 months. It’s a very high quality mask originally recommended to me by a close friend. My hair texture has noticeably improved and my hair has grown long and healthy even with having blonde highlights. My husband complements how smooth my hair is now and I notice it is less frizzy, holding up until hair wash day in combination/on rotation with my purple toning mask and then leave in products in my routine. I also love the scent.

## Frequently Bought Together

- OUAI Fine to Medium Hair Treatment Masque - Hydrating Hair Mask to Help Repair Strands & Increase Shine - With Shea Butter, Keratin and Panthenol - Paraben, Phthalate & Sulfate Free (8 Fl Oz)
- OUAI Fine Shampoo and Conditioner Set - Sulfate Free Shampoo and Conditioner for Fine Hair - Made with Keratin, Marshmallow Root, Shea Butter & Avocado Oil - Free of Parabens & Phthalates (10 Fl Oz)
- OUAI Leave In Conditioner & Heat Protectant Spray - Prime Hair for Style, Smooth Flyaways, Add Shine and Use as Detangling Spray - No Parabens, Sulfates or Phthalates (4.7 oz)

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**Shop now:** [https://www.desertcart.jp/products/291715726-fine-to-medium-hair-treatment-mask-deep-conditioning-hair-mask](https://www.desertcart.jp/products/291715726-fine-to-medium-hair-treatment-mask-deep-conditioning-hair-mask)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-05*