---
product_id: 362175490
title: "GK HAIR Global Keratin The Best Keratin Treatments 300ml (ACAI 300ml)"
brand: "gk hair"
price: "€ 201.87"
currency: EUR
in_stock: true
reviews_count: 8
category: "Gk Hair"
url: https://www.desertcart.gr/products/362175490-gk-hair-global-keratin-the-best-keratin-treatments-300ml-acai
store_origin: GR
region: Greece
---

# 3-5 months lasting smoothness Intense deep conditioning formula 400°F flat iron heat activation GK HAIR Global Keratin The Best Keratin Treatments 300ml (ACAI 300ml)

**Brand:** gk hair
**Price:** € 201.87
**Availability:** ✅ In Stock

## Summary

> 💼 Own your look: professional smoothness that works as hard as you do.

## Quick Answers

- **What is this?** GK HAIR Global Keratin The Best Keratin Treatments 300ml (ACAI 300ml) by gk hair
- **How much does it cost?** € 201.87 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/362175490-gk-hair-global-keratin-the-best-keratin-treatments-300ml-acai)

## Best For

- gk hair enthusiasts

## Why This Product

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

## Key Features

- • **Customizable Heat Styling:** Optimized for flat irons up to 400°F to lock in smoothness and shine perfectly.
- • **Advanced Repair & Strength:** Repairs hair from the inside out, restoring vitality and resilience with every use.
- • **Long-Lasting Keratin Power:** Enjoy 3 to 5 months of sleek, strong, and shiny hair that commands attention.
- • **Salon-Quality Smoothing at Home:** Achieve professional-grade frizz-free hair without the salon price or hassle.
- • **Effortless Application & Maintenance:** Simple step-by-step process designed for busy professionals who demand flawless hair.

## Overview

GK HAIR Global Keratin The Best Keratin Treatment (300ml) is a salon-grade, at-home smoothing treatment that delivers 3-5 months of frizz-free, shiny, and strengthened hair. This advanced keratin formula repairs hair internally while conditioning intensely, activated by heat styling up to 400°F. Perfect for busy professionals seeking a sleek, manageable style without frequent salon visits.

## Description

desertcart.com: GK HAIR Global Keratin The Best Keratin Treatments 300ml (ACAI 300ml) : Beauty & Personal Care

Review: It WORKS! But it smells so horrible after the heat styling - Okay, so far I am absolutely ENAMORED with this product!!!! So much less expensive than getting it professionally done. I’ve never done keratin before but I think I did a really good job! PLEASE WEAR GLOVES AND A HIGH LEVEL MASK WHILE USING THIS PRODUCT. Do NOT handle the treatment directly on your skin. Do not use this product after shaving, waxing or exfoliating your facial skin. All I wanted was to not have to worry about my hair for work, the hospital, and clinicals as a healthcare professional and student. As a model, this hopefully makes my life easier and I should still be able to have my hair curled for shoots. But I haven’t finished working with it yet… I did some of the steps out of order by accident. Here is your comprehensive guide of how I did this, and the honest truth about it so far. So I double-shampooed my hair with a clarifying shampoo, and then put the product through all of my wet hair for one hour. After doing this, I left it on for an hour. Then I ended up blowing my hair dry with a round brush (two different types of hair dryers) and then went over it with two different straightening irons. This is where I made a mistake - you are supposed to RINSE this product out after an hour and use a deep conditioner for 5 minutes (see step 5). I mistakenly left it on for about 24 hours. Do not leave it on for that long. The fumes aren’t good for you - you should be wearing a high level K/N95 or elastomeric mask while working with these chemicals. (Google Brad Mondo Keratin - you’ll see). The actual product doesn’t smell bad - it’s actually a cream and it can splatter a little. But it is easy to spread on your hair and cover each strand. One 3.4 oz bottle was more than enough for my hair, even though I have long, dense hair. As you can see in the photo, my hair has no frizz, and it’s so shiny after rinsing the product and re-drying with a blowdryer and then a straightening iron. CONS: Since I accidentally straightened my hair without rinsing the product, there was a lot of residual gunk on my hairbrushes and combs. There was a strong smell that remained in my hair after that. After rinsing out the product, 24 hours later, my hair smells AWFUL. I did not add a deep conditioner, and it is absolutely disgusting to smell it right now, even though it is very smooth. I expect that washing my hair and deep conditioning it tomorrow should get rid of the odor. PROS: The frizz is gone, especially the ones with my baby hair around my face. My hair is shiny and straight. It’s somewhat soft too. When I went to rinse out the product, my hair did not curl up like it usually does, so the product really did break the bonds for my waves. My only goal was to get rid of the frizz for my professional life in healthcare and studying. This product really worked! Also, here is how to use the product and do it yourself the right way. Good luck! The steps from the website are listed below: 1. Wash hair twice with the pH+ Shampoo, leave the shampoo on hair for at least 3 minutes during each application. Avoid massaging your scalp. 2. Section the hair starting at the nape of the neck and begin to apply ½-inches away from the scalp using the application brush to apply “The Best” on each ½-inch sections of hair while massaging into the hair with your fingers. The hair should be saturated with The Best. DO NOT APPLY ON THE SCALP. 4. Leave product in hair for 40-60 minutes. (60 minutes for maximum smoothing result) Cover the hair with a plastic cap. 5. Rinse product out of hair with warm water. For color-treated hair: apply GK Color Protection Moisturizing Shampoo and rinse. Apply Deep Conditioner for 5 minutes, rinse thoroughly. 6. Blow-dry the hair straight on high heat with a round brush using sufficient tension to smooth the hair until 100% dry. 7. Section the hair and flat iron with GK Hair Titanium Flat iron at 400 degrees. If the hair is overprocessed, flat-iron at 375 degrees, lower the temperature further if the hair is very weak and damaged; especially towards the ends of the hair. Pass the flat iron about 2-4 times in each section. 8. Clients are free to wash their hair at any time after the treatment, using GK Hair Shampoos and Conditioners fortified with Juvexin to maintain the results of the treatment.
Review: Tame the locks - This product has no bad smell and zero fumes. It’s easy to use and gives a great result. Directions are clear and it can be applied at home without any help. I’ve been using it every 8-12 weeks for the past 7ish years now and it’s one of the hair products I don’t want to be without. The downside is that it doesn’t last long enough and starts to loose some effect after a couple of shampoos (use cool water and sulfate-free shampoo to last longer). The cost is also quite expensive for what it is. Still, I think it’s the best keratin product on the market for home use and it doesn’t damage my hair, so while it’s not perfect it still ranks at the top of my list. For someone like me with kinky, frizzy, unruly hair, this formula works very well. I leave it on for an hour and rinse clean before ironing/styling.

## Features

- HAIR SMOOTHING TREATMENT: The Best rejuvenates hair making it smooth, strong and frizz-free. Treatment lasts 3-5 months. The Best is a salon professional smoothing treatment and can be applied at HOME. 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B09G54JJG8 |
| Best Sellers Rank | #36,198 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #11 in Chemical Hair Straighteners |
| Customer Reviews | 4.0 4.0 out of 5 stars (1,842) |
| Item model number  | GK HAIR |
| Manufacturer  | GK HAIR |
| Product Dimensions  | 3.23 x 3.23 x 2.64 inches; 10.58 ounces |
| UPC  | 815401015900 |

## Product Details

- **Brand:** GK HAIR
- **Hair Type:** All
- **Item Form:** Liquid
- **Item Weight:** 300 Grams
- **Product Benefits:** Strengthening

## Images

![GK HAIR Global Keratin The Best Keratin Treatments 300ml (ACAI 300ml) - Image 1](https://m.media-amazon.com/images/I/61I5CHrYHuL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is it recommended to use The Best Treatment on damaged hair?**
A: The Best Treatment is especially formulated for dry, unruly and damaged hair, unmanageable and prone to frizz and tangles.

**Q: Can the best treatment be used at home?**
A: The Best Treatment contains no threat of hair damage and comes with a comprehensive application guide making the product easy to use and easy to use at home.

**Q: Does the best treatment contain formaldehyde?**
A: The Best Treat is 100% formaldehyde free and contains no threat to human health.

**Q: Does the best treatment contain harsh chemicals?**
A: The best treatment is infused with natural ingredients and is free from all kinds of harsh chemicals like sulfates, parabens, gluten, phthalates and DEA/TEA.

**Q: What makes The Best Treatment unique?**
A: The treatment is infused with Juvexin, a keratin protein blend optimized to restore vitality to hair. GK Hair is the first and only brand to take advantage of Juvexin, which makes it unique in the world.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It WORKS! But it smells so horrible after the heat styling
*by A***A on August 9, 2025*

Okay, so far I am absolutely ENAMORED with this product!!!! So much less expensive than getting it professionally done. I’ve never done keratin before but I think I did a really good job! PLEASE WEAR GLOVES AND A HIGH LEVEL MASK WHILE USING THIS PRODUCT. Do NOT handle the treatment directly on your skin. Do not use this product after shaving, waxing or exfoliating your facial skin. All I wanted was to not have to worry about my hair for work, the hospital, and clinicals as a healthcare professional and student. As a model, this hopefully makes my life easier and I should still be able to have my hair curled for shoots. But I haven’t finished working with it yet… I did some of the steps out of order by accident. Here is your comprehensive guide of how I did this, and the honest truth about it so far. So I double-shampooed my hair with a clarifying shampoo, and then put the product through all of my wet hair for one hour. After doing this, I left it on for an hour. Then I ended up blowing my hair dry with a round brush (two different types of hair dryers) and then went over it with two different straightening irons. This is where I made a mistake - you are supposed to RINSE this product out after an hour and use a deep conditioner for 5 minutes (see step 5). I mistakenly left it on for about 24 hours. Do not leave it on for that long. The fumes aren’t good for you - you should be wearing a high level K/N95 or elastomeric mask while working with these chemicals. (Google Brad Mondo Keratin - you’ll see). The actual product doesn’t smell bad - it’s actually a cream and it can splatter a little. But it is easy to spread on your hair and cover each strand. One 3.4 oz bottle was more than enough for my hair, even though I have long, dense hair. As you can see in the photo, my hair has no frizz, and it’s so shiny after rinsing the product and re-drying with a blowdryer and then a straightening iron. CONS: Since I accidentally straightened my hair without rinsing the product, there was a lot of residual gunk on my hairbrushes and combs. There was a strong smell that remained in my hair after that. After rinsing out the product, 24 hours later, my hair smells AWFUL. I did not add a deep conditioner, and it is absolutely disgusting to smell it right now, even though it is very smooth. I expect that washing my hair and deep conditioning it tomorrow should get rid of the odor. PROS: The frizz is gone, especially the ones with my baby hair around my face. My hair is shiny and straight. It’s somewhat soft too. When I went to rinse out the product, my hair did not curl up like it usually does, so the product really did break the bonds for my waves. My only goal was to get rid of the frizz for my professional life in healthcare and studying. This product really worked! Also, here is how to use the product and do it yourself the right way. Good luck! The steps from the website are listed below: 1. Wash hair twice with the pH+ Shampoo, leave the shampoo on hair for at least 3 minutes during each application. Avoid massaging your scalp. 2. Section the hair starting at the nape of the neck and begin to apply ½-inches away from the scalp using the application brush to apply “The Best” on each ½-inch sections of hair while massaging into the hair with your fingers. The hair should be saturated with The Best. DO NOT APPLY ON THE SCALP. 4. Leave product in hair for 40-60 minutes. (60 minutes for maximum smoothing result) Cover the hair with a plastic cap. 5. Rinse product out of hair with warm water. For color-treated hair: apply GK Color Protection Moisturizing Shampoo and rinse. Apply Deep Conditioner for 5 minutes, rinse thoroughly. 6. Blow-dry the hair straight on high heat with a round brush using sufficient tension to smooth the hair until 100% dry. 7. Section the hair and flat iron with GK Hair Titanium Flat iron at 400 degrees. If the hair is overprocessed, flat-iron at 375 degrees, lower the temperature further if the hair is very weak and damaged; especially towards the ends of the hair. Pass the flat iron about 2-4 times in each section. 8. Clients are free to wash their hair at any time after the treatment, using GK Hair Shampoos and Conditioners fortified with Juvexin to maintain the results of the treatment.

### ⭐⭐⭐⭐⭐ Tame the locks
*by T***O on May 1, 2024*

This product has no bad smell and zero fumes. It’s easy to use and gives a great result. Directions are clear and it can be applied at home without any help. I’ve been using it every 8-12 weeks for the past 7ish years now and it’s one of the hair products I don’t want to be without. The downside is that it doesn’t last long enough and starts to loose some effect after a couple of shampoos (use cool water and sulfate-free shampoo to last longer). The cost is also quite expensive for what it is. Still, I think it’s the best keratin product on the market for home use and it doesn’t damage my hair, so while it’s not perfect it still ranks at the top of my list. For someone like me with kinky, frizzy, unruly hair, this formula works very well. I leave it on for an hour and rinse clean before ironing/styling.

### ⭐ New Bad Formula
*by N***L on May 13, 2024*

I have been using the GK hair taming straightening system for over 15 years applied by a stylist in a salon (resistant formula) as well as performed by myself at home (the best treatment) including the deep conditioner. Please be aware the formula has changed for the worse in some way. I am not a stylist, just someone who has used this product and has seen the amazing benefits of the old version and the damaging effects of the new version. The old “resistant” and “the best” versions were great about 5-10 years ago. In the past 5 years especially, I have seen a drastic change in the product and how it reacts with my hair. Also as many reviewers have stated on both Amazon and the GK hair website, when you order “the best” treatment from either Amazon or GK Hair, the product often comes in a damaged packaged with a broken seal on the bottle and the product itself has a different texture (thicker) and is hard to get out of the bottle and the smell is subtle (all previous versions had a very strong smell) This might be due to the product seal being broken and the product has gone bad or expired. I recently ordered a bottle of the best treatment directly from the GK hair website and received a damaged open product which after application caused my hair to be so extremely dry that I have to use a expensive heavy conditioning repair mask treatment just to try to heal my hair from the GK hair treatment. Beware!

## Frequently Bought Together

- GK HAIR Global Keratin The Best Keratin Treatments 300ml (ACAI 300ml)
- GK HAIR pH+ Pre-Treatment Clarifying Shampoo For Preps Hair Deep Cleansing Removes Impurities -With Aloe Vera Vitamins & Natural Oils All Hair Types Men and Women (Ph Shampoo 10.1 Fl Oz)
- GK HAIR Global Keratin Deep Conditioner Masque (7.05 Fl Oz/200 g) Intense Hydrating Repair Treatment Mask for Dry Damaged Color Treated Frizzy Hair Restoration Formula with JOJOBA Seed Oils

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-26*