---
product_id: 404272930
title: "KERATIN RESEARCH 4x 120ml Complex LONG Lasting Brazilian Keratin Hair Treatment Blowout , Argan Oil Straightening Smoothing Professional Results Keratina"
brand: "keratin research"
price: "¥17209"
currency: JPY
in_stock: true
reviews_count: 13
category: "Keratin Research"
url: https://www.desertcart.jp/products/404272930-keratin-research-4x-120ml-complex-long-lasting-brazilian-keratin-hair
store_origin: JP
region: Japan
---

# 4-6 months lasting smoothness 4x 120ml hydrating treatment set Express formula, no 3-day wait KERATIN RESEARCH 4x 120ml Complex LONG Lasting Brazilian Keratin Hair Treatment Blowout , Argan Oil Straightening Smoothing Professional Results Keratina

**Brand:** keratin research
**Price:** ¥17209
**Availability:** ✅ In Stock

## Summary

> ✨ Unlock salon-sleek hair for months—because your time and style deserve the best! 💼

## Quick Answers

- **What is this?** KERATIN RESEARCH 4x 120ml Complex LONG Lasting Brazilian Keratin Hair Treatment Blowout , Argan Oil Straightening Smoothing Professional Results Keratina by keratin research
- **How much does it cost?** ¥17209 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/404272930-keratin-research-4x-120ml-complex-long-lasting-brazilian-keratin-hair)

## Best For

- keratin research enthusiasts

## Why This Product

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

## Key Features

- • **Complete 4-Step System:** Includes clarifying shampoo, moisturizing shampoo, conditioner, and keratin treatment for professional-grade care at home.
- • **Salon-Quality Shine & Smoothness:** Transform frizz into sleek, silky hair with a powerful blend of keratin, collagen, and argan oil for a luminous finish.
- • **User-Friendly with Expert Support:** Easy-to-follow instructions and tutorial videos make salon-quality results achievable even for first-timers.
- • **Long-Lasting Results That Save Time:** Enjoy 4-6 months of manageable, soft hair—cut your daily styling routine and skip the hassle of frequent touch-ups.
- • **Advanced Frizz Control & Heat Protection:** Tames split ends, locks in moisture, and shields hair from heat damage for stronger, healthier strands.

## Overview

KERATIN RESEARCH 4x 120ml Complex is a professional-grade Brazilian keratin hair treatment set designed to deliver long-lasting (4-6 months) frizz control, intense hydration, and salon-quality shine. Featuring a unique express formula, it eliminates the typical 3-day wait, making it ideal for busy professionals seeking effortless, manageable hair. The set includes a clarifying shampoo, moisturizing shampoo, conditioner, and keratin treatment enriched with argan and coconut oils, collagen, and amino acids to strengthen and smooth coarse, curly, or damaged hair. Backed by easy-to-follow instructions and expert video support, it offers a cost-effective, time-saving solution for at-home or salon use.

## Description

desertcart.com: KERATIN RESEARCH 4x 120ml Complex LONG Lasting Brazilian Keratin Hair Treatment Blowout , Argan Oil Straightening Smoothing Professional Results Keratina : Beauty & Personal Care

Review: Great affordable straightening option for men with curly short hair - I have had very frizzy/curly blonde hair since I was young. I now have short hair, slightly over an inch long on the top. I like to blow dry my hair to style it into shape. I have been using this treatment for 2+ years now, about every 4-6 weeks. Without this keratin treatment I can't really shape my hair at all. Blowdryers don't create shape that holds and flatirons make my hair awkwardly bone straight. Pros of this product: - Result is great for 3-4 weeks and makes my hair so much faster and easier to style with a round brush. This saves me so much time fighting with my hairspray and comb to get the front of my hair to look nice. - Very quick to apply on men's short hair (takes me like 5-7 mins to comb through). - Can wash out next day, don't need to wait 3 days like common salon products. I usually try to wash out after 12 hours, but have waited as little as 8 hours before too. Cons: - Once your roots grow out with short hair, it becomes much harder to style. So I do have to re-do this process about once monthly. That's not the product's fault, but worth calling out for men with short hair considering this. I think the net time savings though every morning is worth the 45-60 mins this takes me monthly. - To get the best results, you'll want to buy a skinny straightener specifically designed for men with short hair. That enables you to get down to the root of your hair when you straighten it during the treatment. There are plenty of affordable options on desertcart. - The smell is chemically, but honestly not that bad. - The fumes do irritate my eyes. But it's not unbearable. Having a fan is a game changer. Merely cracking the window doesn't really reduce the irritation. Overall I very much recommend this product to men with curly hair who want the ability to shape their hair more. Love the way my hair looks, especially the first couple weeks after I do the treatment.
Review: Perfect for unmanageable hair - My natural hair ranges from straight to 2c depending on which part of the head you look at. It’s also quite thin, not a lot of hair density, but the strands are coarse and prone to kinky frizz. Because of all these factors it’s very hard to style. I tried curly girl for several years and I got so frustrated with how much time it takes and how inconsistent my hair looked. ENTER: This product!! It is truly a keratin (formaldehyde) treatment that semi-permanently straightens your hair. I’ve used it twice now (first time was several years ago) with the same great results. On my frizzy wavy hair it AIR DRIES perfectly straight and shiny for about 2 months, and then the waves start to come back a tiny bit and of course they grow back at the top. The hair that has been treated stays smoother than normal FOREVER. It is ‘semi permanent’ but for me it was basically permanent until the hair grew out. Some frizz and some wave came back but never at full force. I thought that was great but just fyi. It doesn’t really hold a curl for the first week but after that it curls just fine for me. The process takes many hours if you do it alone. And your arms will get tired. I agree with all the reviews that say to do it in a well ventilated space, and make sure you have a flat iron that gets hot enough. You may need help if you aren’t used to straightening the back of your hair. Overall, I love this product. I don’t have to spend time on my hair anymore unless I want to.

## Features

- This is a professional-grade Keratin Hair Straightening & Hair Repairing Treatment that can be used at home or salon, delivering long-lasting results for months—far beyond what a keratin mask or serum can achieve. While it requires time for proper application, the lasting benefits, cost-effectiveness, and time savings make it superior to other hair treatments. Keratin Research products will save you countless hours of daily hair maintenance for months of hassle-free, beautiful hair.
- Our Keratin Hair Treatments come with comprehensive support, featuring simple, easy-to-follow instructions and instructional videos from our experienced team making your experience a breeze. Our 4oz bottle can deliver 1-2 individual treatments and has a very long shelf life. Includes: 120ml Keratin Hair Treatment, 120ml Clarifying Shampoo, 120ml Moisturizing Shampoo, and 120ml Moisturizing Conditioner.
- Long-Lasting Results: Achieve elastic, flexible, and soft hair with a naturally vibrant shine that lasts 4-6 months with Keratin Research's Original Formula—no need to wait 3 days thanks to the express formula.
- Salon-Quality Shine: Experience stunningly soft, shiny, silky hair, thanks to a powerful blend of Keratin, Collagen, Moroccan Argan Oil, and Coconut Oil for sleek, smooth beauty and luxurious shine. Imagine clearing your bathroom of dozens of single-purpose products and replacing them with one powerful, all-in-one solution that meets all your hair care needs.
- Advanced Frizz Control & Protection: This treatment offers months of advanced frizz control, long-lasting moisture, and heat damage protection, while taming split ends and strengthening hair from the inside out for smoother, more manageable styling.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09RP2VZVS |
| Best Sellers Rank | #59,618 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #33 in Chemical Hair Straighteners |
| Brand | KERATIN RESEARCH |
| Brand Name | KERATIN RESEARCH |
| Customer Reviews | 4.2 out of 5 stars 1,072 Reviews |
| Hair Type | Coarse, Frizzy, Curly, Chemically Treated, Damaged |
| Item Form | Liquid |
| Item Weight | 1.5 pounds |
| Manufacturer | KERATIN RESEARCH |
| Manufacturer Part Number | GLVAR |
| Material Features | Natural |
| Model Number | GLVAR |
| Number of Items | 1 |
| Product Benefits | Frizz Control,Hydrating,Intense Conditioning,Moisturizing,Shine,Smoothening,Softening,Split Ends,Straightening,Strengthens Product Benefits Frizz Control,Hydrating,Intense Conditioning,Moisturizing,Shine,Smoothening,Softening,Split Ends,Straightening,Strengthens See more |
| Scent | ORIGINAL |
| Scent Name | ORIGINAL |
| Set Name | Keratin Research 4-Piece Hair Treatment Set |
| Special Ingredients | Argan oil, coconut oils, proteins, amino acid complexes |
| Unit Count | 4 Fluid Ounces |

## Product Details

- **Brand:** KERATIN RESEARCH
- **Hair Type:** Coarse, Frizzy, Curly, Chemically Treated, Damaged
- **Item Form:** Liquid
- **Item Weight:** 1.5 pounds

## Images

![KERATIN RESEARCH 4x 120ml Complex LONG Lasting Brazilian Keratin Hair Treatment Blowout , Argan Oil Straightening Smoothing Professional Results Keratina - Image 1](https://m.media-amazon.com/images/I/71liwvwDWsL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great affordable straightening option for men with curly short hair
*by R***. on August 17, 2023*

I have had very frizzy/curly blonde hair since I was young. I now have short hair, slightly over an inch long on the top. I like to blow dry my hair to style it into shape. I have been using this treatment for 2+ years now, about every 4-6 weeks. Without this keratin treatment I can't really shape my hair at all. Blowdryers don't create shape that holds and flatirons make my hair awkwardly bone straight. Pros of this product: - Result is great for 3-4 weeks and makes my hair so much faster and easier to style with a round brush. This saves me so much time fighting with my hairspray and comb to get the front of my hair to look nice. - Very quick to apply on men's short hair (takes me like 5-7 mins to comb through). - Can wash out next day, don't need to wait 3 days like common salon products. I usually try to wash out after 12 hours, but have waited as little as 8 hours before too. Cons: - Once your roots grow out with short hair, it becomes much harder to style. So I do have to re-do this process about once monthly. That's not the product's fault, but worth calling out for men with short hair considering this. I think the net time savings though every morning is worth the 45-60 mins this takes me monthly. - To get the best results, you'll want to buy a skinny straightener specifically designed for men with short hair. That enables you to get down to the root of your hair when you straighten it during the treatment. There are plenty of affordable options on Amazon. - The smell is chemically, but honestly not that bad. - The fumes do irritate my eyes. But it's not unbearable. Having a fan is a game changer. Merely cracking the window doesn't really reduce the irritation. Overall I very much recommend this product to men with curly hair who want the ability to shape their hair more. Love the way my hair looks, especially the first couple weeks after I do the treatment.

### ⭐⭐⭐⭐⭐ Perfect for unmanageable hair
*by B***Y on February 21, 2023*

My natural hair ranges from straight to 2c depending on which part of the head you look at. It’s also quite thin, not a lot of hair density, but the strands are coarse and prone to kinky frizz. Because of all these factors it’s very hard to style. I tried curly girl for several years and I got so frustrated with how much time it takes and how inconsistent my hair looked. ENTER: This product!! It is truly a keratin (formaldehyde) treatment that semi-permanently straightens your hair. I’ve used it twice now (first time was several years ago) with the same great results. On my frizzy wavy hair it AIR DRIES perfectly straight and shiny for about 2 months, and then the waves start to come back a tiny bit and of course they grow back at the top. The hair that has been treated stays smoother than normal FOREVER. It is ‘semi permanent’ but for me it was basically permanent until the hair grew out. Some frizz and some wave came back but never at full force. I thought that was great but just fyi. It doesn’t really hold a curl for the first week but after that it curls just fine for me. The process takes many hours if you do it alone. And your arms will get tired. I agree with all the reviews that say to do it in a well ventilated space, and make sure you have a flat iron that gets hot enough. You may need help if you aren’t used to straightening the back of your hair. Overall, I love this product. I don’t have to spend time on my hair anymore unless I want to.

### ⭐⭐⭐⭐⭐ Excellent At Home Keratin Treatment!
*by S***L on June 29, 2024*

Oh I wish I could add a before and after picture! Went from frizzy to smooth in one treatment! I used this Original Formula Keratin tx after shampooing with the clarifying shampoo the night before-yup I'm that lazy I let it airdry overnight, I didn't want to blowdry my long hair twice...Anyway, the next day: took my time, applied the easy method (with my fingertips), combing out any excess with a fine tooth comb, followed directions: cover with plastic for 30 min, blowdry 100% and flat ironin small sections: and WOW-looks like I went to the salon! I am soooo impressed with this product. Does it smell like keratin, yep, so use in well ventilated room. I suggest using less is more (because you leave product in hair and have to dry it 100% before flat ironing), I used about 1.5 oz of product and my hair is long, med fine, with uneven wave/curl pattern at nape and back of head especially: so I sectioned and made sure I straightened those areas most since they are hard to reach and my problem areas. And with this Florida temps being both hot and humid, my hair was a frizzy, hot mess-not anymore!!! I now LOVE my hair after this treatment: Smooth, Straight, Sleek! Super product: 5 stars+

## Frequently Bought Together

- KERATIN RESEARCH 4x 120ml Complex LONG Lasting Brazilian Keratin Hair Treatment Blowout , Argan Oil Straightening Smoothing Professional Results Keratina
- CRISTALBOX Keratin Hair Mask,Keratin Hair Treatment 250g Hair Mask for Dry Damaged Hair,Hair Treatment Mask Deep Repair Damage Hair Root,Natural Deep Conditioner Hydrating Hair Masque

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-28*