---
product_id: 711987387
title: "Brazilian Straight Complex Keratin Hair Treatment 4pc Blowout Professional Results Get Straightens Smooth Frizz Free Hair instantly With Argan Oil FORMALDEHYDE-FREE Keratin gold standards 3-6 months"
brand: "keratin research"
price: "€ 114.34"
currency: EUR
in_stock: true
reviews_count: 11
category: "Keratin Research"
url: https://www.desertcart.gr/products/711987387-brazilian-straight-complex-keratin-hair-treatment-4pc-blowout-professional-results
store_origin: GR
region: Greece
---

# 3-6 months lasting smoothness Express formula, no 3-day wait Formaldehyde-free & natural oils Brazilian Straight Complex Keratin Hair Treatment 4pc Blowout Professional Results Get Straightens Smooth Frizz Free Hair instantly With Argan Oil FORMALDEHYDE-FREE Keratin gold standards 3-6 months

**Brand:** keratin research
**Price:** € 114.34
**Availability:** ✅ In Stock

## Summary

> ✨ Unlock your hair’s ultimate smoothness and shine—no salon needed! ✨

## Quick Answers

- **What is this?** Brazilian Straight Complex Keratin Hair Treatment 4pc Blowout Professional Results Get Straightens Smooth Frizz Free Hair instantly With Argan Oil FORMALDEHYDE-FREE Keratin gold standards 3-6 months by keratin research
- **How much does it cost?** € 114.34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/711987387-brazilian-straight-complex-keratin-hair-treatment-4pc-blowout-professional-results)

## 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

- • **Clean & Safe Formula:** Formaldehyde-free keratin enriched with argan and coconut oils for healthy, nourished hair.
- • **Long-Lasting Smoothness:** Enjoy sleek, manageable hair for up to 6 months with a single treatment.
- • **Salon-Quality Results at Home:** Achieve professional-grade straight, frizz-free hair without the salon price or hassle.
- • **Time-Saving Express Treatment:** Skip the usual 3-day wait—style your hair immediately after treatment.
- • **Versatile for Most Hair Types:** Perfect for virgin, colored, and chemically treated hair (except some blondes—see instructions).

## Overview

The Brazilian Straight Complex Keratin Hair Treatment by Keratin Research is a formaldehyde-free, professional-grade formula that instantly straightens, smooths, and strengthens hair. Infused with argan and coconut oils, it delivers long-lasting frizz control and shine for 3 to 6 months. Designed for busy professionals, this express treatment requires no waiting period post-application and suits most hair types, offering a salon-quality blowout experience at home.

## Description

Product description May not be suitable for Bleached or colored blonde hair as it may alter the color a bit however there is a way to avoid it by reducing the heat (Instructions inside). Or Look for INVERTO ONE Or INVERTO 60 for Blonde Hair. Discover the beautiful hair you had all along and wake up with beautiful hair everyday with the Original Formula Keratin Treatment by Keratin Research. Save yourself the countless hours and damage of blow dryers and hair straighteners with the Keratin Research Original Formula Keratin Treatment. Advanced yet fast and simple to use keratin treatment that instantly straightens, smooths, repairs, conditions, and strengthens the hair using an intense conditioning remedy which restores vitality by repairing the hair from the inside out. The amazing results will leave hair elastic, flexible, and soft with a naturally vibrant shine. This Keratin Research straightening Treatment is designed to straighten hair, remove frizz, and add shine, silkiness and softness to your hair. The results are instant! Nothing else to do! The Keratin Research Original Formula Treatment will last for over 3 months and in some cases as long as 9 months. In your current busy lifestyle, you will find this keratin hair treatment by Keratin Research to be a life changing experience! With Keratin Research's Original Formula Keratin Hair Treatment your hair will be easier to manage and maintain, smooth, fast-drying and easy to style. The Keratin Research Original Formula Keratin Hair Treatment is suitable for virgin, colored, and previously chemically-treated hair. Ingredients Hydrolyzed keratin, Keratin Amino acids, Argan oil, Coconut oil, Keratin Proteins and more P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Directions Please follow the included instructions. Support is available 7 days a week via email. Safety Warning may cause irritation See more

Review: It works! - I don’t usually write reviews but felt this product needed it! I’ve had a few Brazilian blow drys at the hairdressers but needed to find a cheaper alternative. Didn’t have much hope for this to be honest but I can honestly say it works so well and it may of even been better than the salon. It’s easy to do though it takes some time. I have very thick and frizzy 2b hair which usually leaves me looking like hagrid when I leave it to dry. This stuff means I can leave it to dry naturally and it is so soft and smooth. Dries quicker and feels so healthy. I applied the treatment about 3 months ago and it is still noticeably smoother! The only small downside is that it does leave your hair smelling a bit funky but only really when it gets wet. Once dried it’s not noticeable! 10/10 recommend!
Review: An honest, non biased review of a product which works for my hair - This is the 4th time I’ve purchased this product and so I felt a review was justified. This product has honestly changed my life! A little dramatic I know but it really has in that it has saved me hundred of hours, this treatment takes about 3 hours to apply so yes it’s a slog but it really is worth it because once applied I do not heat treat my hair in any way shape or form for approximately 3 months. I just wash, air dry and go. Here are the before and after photos of my hair. As you can see following the treatment it is immaculately straight, this is before i wash it out (which will be tomorrow) so after tomorrow my hair will be less straight, and more defined curls with zero frizz which is exactly how I like it, I don’t dig the polka straight look but if I did, it would only take 10 minutes to achieve this look rather than 90 minutes which is how long it would normally take. If you’re looking for something which will make your curly hair more manageable and defined I would definitely give this a go. Warning! It does really quite sting your eyes so make sure you apply in a well ventilated room! ***update! I have now added photos of what it looked like after I washed the treatment out 48 hours later and left it to air dry.. (see photos taken in room with green walls) you can see how the roots are a little wavy (probably as I couldn’t get so close with the straighteners) I should also add that I used straightener set to 230 degree. In the past when I’ve used straightener which only peak at 180, the end result was not so straight

## Features

- THIS IS UK-EU VERSION FORMALDEHYDE-FREE VERSION: Advanced yet fast and simple to use keratin treatment that instantly straightens, smooths, repairs, conditions, and strengthens the hair using an intense conditioning remedy which restores vitality by repairing the hair from the inside out.
- The amazing results will leave hair elastic, flexible, and soft with a naturally vibrant shine. Brazilian Straight quality Original Formula straightens and smooths your hair for 4-6 months. No Need to wait 3 days- Express formula.
- This Keratin Hair Treatment contains Argan oil, coconut oils, proteins and amino acid complexes for powerful moisture binding for healthy and shiny hair. On your next keratin hair treatment insist on Keratin Research products, nothing works as good
- For very long hair and/or course and dry hair (dry and thick hair absorbs more product), please consider the 10oz (300ml) version. You want to be sure you don't run out of product in the middle of the treatment. Most people finds 120ml adequate
- May not be suitable for Bleached or colored blonde hair as it may alter the color a bit however there is a way to avoid it by reducing the heat (Instructions inside). Or Look for INVERTO ONE Or INVERTO 60 for Blonde Hair. Please Follow the instruction enclosed inside the box.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09RP2VZVS |
| ASIN  | B09RP2VZVS |
| Best Sellers Rank | 29,535 in Beauty ( See Top 100 in Beauty ) 4 in Chemical Hair Straighteners |
| Brand | KERATIN RESEARCH |
| Colour | Natural |
| Country of origin  | USA |
| Customer Reviews | 3.9 3.9 out of 5 stars (5,539) |
| Customer reviews | 3.9 3.9 out of 5 stars (5,539) |
| Date First Available | 27 April 2022 |
| Format | Lotion |
| Is discontinued by manufacturer  | No |
| Item dimensions L x W x H | 5.1 x 10.2 x 10.2 centimetres |
| Item model number | GLVAR |
| Item model number  | GLVAR |
| Item weight | 24 Ounces |
| Manufacturer | KERATIN RESEARCH |
| Manufacturer  | KERATIN RESEARCH |
| Package Weight | 0.58 Kilograms |
| Package dimensions | 19.4 x 17.1 x 4.6 centimetres |
| Product Dimensions | 5.08 x 10.16 x 10.16 cm; 680.39 g |
| Product Dimensions  | 5.08 x 10.16 x 10.16 cm; 680.39 g |
| Scent | ORIGINAL |
| Special features | Natural organic results- formaldehyde-free |
| Volume | 120 Millilitres |

## Product Details

- **Brand:** KERATIN RESEARCH
- **Hair type:** All
- **Item form:** Lotion
- **Item weight:** 24 Ounces
- **Product benefits:** Straightening and frizz control

## Images

![Brazilian Straight Complex Keratin Hair Treatment 4pc Blowout Professional Results Get Straightens Smooth Frizz Free Hair instantly With Argan Oil FORMALDEHYDE-FREE Keratin gold standards 3-6 months - Image 1](https://m.media-amazon.com/images/I/71liwvwDWsL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ It works!
*by A***G on 15 August 2024*

I don’t usually write reviews but felt this product needed it! I’ve had a few Brazilian blow drys at the hairdressers but needed to find a cheaper alternative. Didn’t have much hope for this to be honest but I can honestly say it works so well and it may of even been better than the salon. It’s easy to do though it takes some time. I have very thick and frizzy 2b hair which usually leaves me looking like hagrid when I leave it to dry. This stuff means I can leave it to dry naturally and it is so soft and smooth. Dries quicker and feels so healthy. I applied the treatment about 3 months ago and it is still noticeably smoother! The only small downside is that it does leave your hair smelling a bit funky but only really when it gets wet. Once dried it’s not noticeable! 10/10 recommend!

### ⭐⭐⭐⭐⭐ An honest, non biased review of a product which works for my hair
*by M***B on 14 September 2020*

This is the 4th time I’ve purchased this product and so I felt a review was justified. This product has honestly changed my life! A little dramatic I know but it really has in that it has saved me hundred of hours, this treatment takes about 3 hours to apply so yes it’s a slog but it really is worth it because once applied I do not heat treat my hair in any way shape or form for approximately 3 months. I just wash, air dry and go. Here are the before and after photos of my hair. As you can see following the treatment it is immaculately straight, this is before i wash it out (which will be tomorrow) so after tomorrow my hair will be less straight, and more defined curls with zero frizz which is exactly how I like it, I don’t dig the polka straight look but if I did, it would only take 10 minutes to achieve this look rather than 90 minutes which is how long it would normally take. If you’re looking for something which will make your curly hair more manageable and defined I would definitely give this a go. Warning! It does really quite sting your eyes so make sure you apply in a well ventilated room! ***update! I have now added photos of what it looked like after I washed the treatment out 48 hours later and left it to air dry.. (see photos taken in room with green walls) you can see how the roots are a little wavy (probably as I couldn’t get so close with the straighteners) I should also add that I used straightener set to 230 degree. In the past when I’ve used straightener which only peak at 180, the end result was not so straight

### ⭐ Left my hair hard and crispy like plastic
*by F***S on 28 August 2021*

I followed the instructions and watched. A YouTube video of someone using this exact product and my results were very different. One of the reviews mentioned the formula has changed recently and I’m sure I have the newer formula. I washed my hair three times with the shampoo just to be sure, blow dried throughly on a medium heat. And then used a very fine toothed comb to apply the product in 2cm sections (took over an hour). I left it in for the recommended 90 mins and the second I started to blow dry it, my hair became hard (you could knock and it would make a sound). I also noticed that the brush I was using to blow dry had clumps and clumps of hair, I have never ever in my life lost so much hair. I was expecting to see right through to my scalp every time I looked at the mirror. I continued anyway using the brush to try and separate the strands and it eventually did. The flat ironing seemed to fuse each strand together and leave it hard once again. I tried lowering the heat, making it hotter, using with and without a comb but each time the result was the same. I read that sometimes too much keratin can cause build up and it will sit on top of your hair causing stiffness, but I used the comb to ensure there was no build up. It’s the next day and my hair still feels like plastic and i think I have permanently damaged it. I’ll be surprised if I’m not bald by the next wash and sadly that’s not a joke.

## 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 Greece*
*Store origin: GR*
*Last updated: 2026-01-25*