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GK HAIR

GK HAIR Global Keratin The Best Kit (33.8 Fl Oz/1000ml) Smoothing Keratin Hair Treatment Professional Brazilian Complex Blowout Straightening For Silky Smooth & Frizz Free Hair

    • Based on 1,542 reviews
Condition: New
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$435.99 Why this price?

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Availability: In Stock.
Fulfilled by GKhair
Arrives Wednesday, May 7
Order within 23 hours and 18 minutes
Available payment plans shown during checkout

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Style: The best 1000ml kit


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.
  • NATURAL SMOOTHING: This natural straightening treatment helps smooth hair naturally by conditioning with Natural Seed Oils and repairing damage within the hair. GK Hair pH+ Clarifying Shampoo An important step that opens the hair cuticle from oils product build-up chlorine environmental impurities to fill with The Best Keratin, GK Hair Non Sulfate Moisturizing Shampoo & Conditioners Infused with Juvexin (A keratin anti-aging protein) that provides superior protection moisture a lasting shine.
  • NO WAITING TIME TO WASH AS NORMAL: There is no wait days after the application to be allowed to wash your hair again. This GK Hair Keratin treatment The Best kit also known as Brazilian keratin treatment comes with 100ml/3.4oz Ph+ Clarifying shampoo, GK Hair The Best Keratin Treatment, GK Hair Moisturizing Shampoo, GK Hair Moisturizing Conditioner and Deep Conditioner 20ml sachet Stop buying Frizz products that work for one day.
  • REDUCES NATURAL CURL: The Best reduces the natural curl pattern of the hair and closes the hair cuticle, eliminating frizz. The benefits of keratin are undeniable. Keratin penetrates deep into the hair and improves it from the inside. The product smooths & moisturizes, making combing easier. Its unique formula, saturated with a rich composition of natural ingredients and a high keratin content, will give your hair a luxurious shine and vitality!
  • THE BEST HAIR STRAIGHTENING TREATMENT: Temporary straightening treatment for frizzy hair, it strengthens your hair for up to 5 months. Amazing results, one of the best in the world. Eliminates frizz and curl, promotes healing of hair, blocks the effects of humidity, great for all hair types. Great Formulation: Enhanced for tough cases of curly stubborn hair.Rich infusion of nourishing cleansing elements provides a luxurious lather that leaves hair healthy strong vibrant manageable.

Brand: GK HAIR


Hair Type: All


Item Weight: 1000 Grams


Product Benefits: Straightening


Item Form: Liquid


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 5.91 x 5.91 x 5.91 inches; 2.2 Pounds


UPC ‏ : ‎


Manufacturer ‏ : ‎ GK HAIR


Country of Origin ‏ : ‎ USA


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Gentle and effective. Best product I have ever used
Style: 400ml
This is a fantastic product. My hair has never felt so good. I used to relax my hair and also used japanese hair straightener for while, all of which were very damaging. This product does not have a smell like other relaxers and keratin treatments. It's so gentle and smells good. I was shocked how well it worked. My hair is soft and manageable now. Although I was not intending to take all the curl out, it did straighten my hair. It looks fantastic. ... show more
Reviewed in the United States on April 8, 2025 by elena vaida
    • 4c review
Style: 400ml
My hair never flew in the wind until I used this. Trust the process follow the box, I tried to blow dry the product into my hair without washing it out, and my hair felt sticky, so I washed and shampooed it and conditioned it and then blow dried it. My hair was dry and hard. I added a little bit of silk infusion and started to flat iron , and my hair is silky and soft and every step I take, I can feel my hair flying behind me my hair is only shoulder length. I needed to trim my ends in order to have the full experience.. I have a flat earned my hair in five years because it never turned out like this. It did burn a little did better on my scalp but I just sprayed it with my water bottle to soothe the pain and it worked. It does not stink if for the people who are saying that one of their bottles came opened already the silver part they’re looking for is literally attached to the cap I had the same issue and I already knew that was the problem just looking at the pictures. My hair feels light and amazing and I still have my Afro. ... show more
Reviewed in the United States on December 10, 2024 by Cynthiaouya
    • NOT worth the money AND Terrible customer service!!
Style: Consumer Box 100ml
I followed the exact directions, step by step and even though my hair felt great right after the treatment, after the 1st wash (using the included shampoo+conditioner), my hair went back to almost the same texture as before. It was still frizzy and curly-ish. It had a slighter smoother texture, that’s all- DEFINITELY Not worth the money. Also the after-smell of the treatment is just awful! It’s so bad I have tried to get rid off it during the last few washes by using different shampoos/conditioners that smell good, but I can still smell it, especially when is wet. I would not recommend this - I would just go to a professional salon next time and pay the extra$ for a good product, labor, and the long time it takes to apply a keratin treatment. UPDATE: the company contacted me to ask me which steps I followed. I explained to them that I followed the exact steps listed in the instructions, EVERY SINGLE ONE. They messaged me another 2 times inquiring about the iron temperature I used, and other specific questions, to which I answered. then they emailed me again to tell me They don’t believe I followed the proper steps!! This is THE WORST CUSTOMER SERVICE I’ve ever had! If you are going to email your customers to ask if you followed their instructions (which I very carefully did) and then tell them you don’t believe them you shouldn’t even be in business! I 100% WASTED 100$ and also the ton time I spent applying the product AND answering their pointless messages. IF I COULD GIVE THEM NEGATIVE STARTS I WOULD!!! ... show more
Reviewed in the United States on April 12, 2022 by Monica R.
    • Great treatment, bad clarifying shampoo
Style: Consumer Box 300ml
I love the hair treatment, but I follow the alternative instructions so my hair actually stays frizz free and straight for 5 months, BUT if you dye your hair 100% stay away from the best ph+ clarifying shampoo. It will oxidize colored hair instantly. Use a different one. You're welcome.
Reviewed in the United States on November 16, 2024 by :)
    • Worked on my 4b/c hair
Style: 400ml
I have 4b/c hair. I was hesitant to purchase, but read the review from another 4 tenured lady here and saw a review on YouTube from another. I have also had salon keratin treatments in the past. People need to understand that this is NOT A STRAIGHTENER. It’s a smoothing treatment that helps with frizz and manageability. And to that point, I am VERY happy with my results. There is no horrible smell or fumes like the salon version. It didn’t burn at all and I found it easy to use overall. My kit had all the advertised pieces. The shower cap is a little small and the gloves aren’t the best, but fortunately, I had extras of those items on hand. I had great results immediately and my hair stayed straight for 2 weeks in Texas heat and humidity until I washed it. My hair reverted after the shampooing but was much easier to handle and manipulate than before the treatment. After the first wash, I conditioned, dried, and flat ironed (only 1-2 passes this time) and it stayed straight again. I’ll see how long it lasts. So far my hair seems like it’s still healthy and non-damaged. I’ll try to update this review if there are any significant changes. ... show more
Reviewed in the United States on July 24, 2024 by Carrie A. Simmons
    • Missing Instruction
Style: Consumer Box 300ml
I received my product but with no instructions to apply from home. I can update this review if I can find the full introduction on how to apply it step by step. Please Help!
Reviewed in the United States on April 5, 2025 by Yvrose Pierre
    • Easy to use but, doesn't last past one wash.
Style: 400ml
We've used all types of keratin treatments for my daughter's thick, coarse, wavy hair and had high hopes for this one. We followed the instructions to the letter. We were disappointed. The Pros: Easy to use, less steps and smells much better than other keratin treatments. The Cons: Minimal results that don't last at all. After just one wash, the hair is right back to where it was prior to treatment. Not worth the time and money. ... show more
Reviewed in the United States on August 27, 2024 by X.Mom
    • Timely. Undamaged
Style: 400ml
Timely. Undamaged.
Reviewed in the United States on March 12, 2025 by Angela Y Hawkins

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