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GK HAIR Global Keratin The Best (3.4 Fl Oz/100ml) Smoothing Keratin Hair Treatment - Professional Brazilian Complex Blowout Straightening For Silky Smooth & Frizz Free Hair

  • Based on 1,467 reviews
Condition: New
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Availability: In Stock.
Fulfilled by GKhair

Arrives Dec 1 – Dec 2
Order within 7 hours and 15 minutes
Available payment plans shown during checkout

Style: 100ml


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. Apply it for the 40 to 60 mins depend upon texture of your hair.
  • 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: Wavy, Curly, Afro American


Item Weight: 0.2 Pounds


Product Benefits: Strengthening


Item Form: Liquid


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 8.25 x 1.87 x 5.25 inches; 3.2 ounces


Item model number ‏ : ‎ GKH JT 420 30


UPC ‏ :


Manufacturer ‏ : ‎ GK HAIR


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Dec 1 – Dec 2

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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Top Amazon Reviews


  • Love it! It will lighten your hair a bit though
Style: 100ml
I used the clarifying shampoo first. Then followed directions. My hair is naturally a mess as you can see. The side by side photos is how my hair is after I straighten it and have SLEPT through the night and woken up. My hair is soooo much more manageable and absolutely do recommend this. I get two treatments from one bottle as my hair is short. So that makes it $30-$35 a treatment vs the $250 at the salon. Is it better than my salon treated ones? No. But he’s definitely comparable and worth it for the price. I’ll update in a few weeks/ months to share how long it has lasted. 3 week ETA: my hair has significantly been less frizzy and been able to stay straight and not get really puffy like it would before the treatment. This definitely doesn’t last as long as what you would get in the salon and I can already tell that I’ll need to do it again, probably within another three weeks, but it could also get better with each treatment. My hair will probably get lighter again when I use the clarifying shampoo so I plan to dye it darker a few days after treatement and I’ll see if that affects the treatment at all as well. ... show more
Reviewed in the United States on May 20, 2024 by Nicole r Nicole r

  • IT WORKS!
Style: 100ml
I am Black with a mixture of 3C/4A hair. Some of you are trying to see how this works on black hair so here is a review for my people. IYKYK... For the record, I don't really believe in curly hair types because my hair pattern becomes more kinky when dry and is curly/coily when properly moisturized. I'm mentioning it here as a reference point for the girlies. Again, IYKYK. I like this product. I've tried plenty of things to help my super dry natural hair and NOTHING really helped. My hair continued to remain dry. I know natural hair needs moisture to cooperate & I KNOW how manageable my hair is when it's properly moistured (my first henna treatment showed me that years ago). Well the instructions were simple and straightforward. I didn't notice any bad smell like some other reviewers and I couldn't have cared less what it smelled like if it worked. It was VERY easy to use so the girlies who struggled, must be struggling in life because a relaxer at home coloring is way more complicated than this. I purchased the revlon blower dryer (Dr. Curly or tangle something) brush to assist with blow drying process which made everything SUPER easy. I also combined it with an olaplex treatment but I don't feel if affected my results at all. Truthfully, what really helped, was when I washed my hair a week later. I used the Aphoghee shampoo & moisture balancing conditioner. I didn't do another olaplex treatment, just the Aphoghee and my curls were Chris Brown Poppin! My natural hair was super manageable and my entire head was 4C for reference. I know my hair is thoroughly moisturized and behaving when I don't have to drown it in product. I can spray it with some water, a little leave in (my hair is fine so I do mean a little) and a bit of Aussie curl gel (the only gel I use because it's mositurizing and mixes well with ALL my hair products. You ladies know ecostyler doesn't mesh with everything, but the Aussie Moist gel does! The product does appear to loosen your curls a bit, but I believe it just really moisturizes the hair more than a looser curl pattern. Again, I think really moisturized hair makes a difference in your curl pattern. I only noticed my new growth because it was super frizzy and very tightly curled compared to the the keratin treated hair. I did my treatment early February and it is mid-April. I noticed about 2-2.5" of new growth and the treatment is still going strong. I'm unsure if it permanently straightens hair after repeated treatments but my next application will probably be over the untreated hair first. This is not like a relaxer/texturizer. My hair is still very curly; it truly is more just manageable than before. However, eventually, I will try to see if it straightens hair with repeated applications or it only lasts so many treatments before it reverts back to my natural hair. As long as the treated hair cooperates, I don't see an immediate needs to reapply the treatment of the pre-treated section. I apologize that this review is long, but I wanted to give as much details from my perspective because I know I didn't have much to work with from a Black woman's perspective when I was unsure about ordering this. ... show more
Reviewed in the United States on April 15, 2023 by Dee

  • New Bad Formula
Style: 300ml
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! ... show more
Reviewed in the United States on May 13, 2024 by northernsoul

  • Magical product
Style: The Best COCO 100ml
Im soooo excited to have found this product!!! It was easy to apply and ever since my hair woes have vanished. I have 4b/c kinky hair and before it would take me forever to detangle my hair. With the summer months coming and me being an avid sweater and swimmer I wanted something that would make my hair more manageable. Thanks to this product my hair takes way less time to detangle. Im talking 1-3 brush strokes per section and Im good. And when I want to blowdry or blowdry and straighten my hair I can do that in no time. It didn’t loosen my curl pattern by much instead of having 4b/c I have 4a/b now. So if you like wearing your curly hair you’ll be happy to know you still can. Also my hair feels very healthy. It wasn’t damaged before but the product did not harm my hair only helped. Also I love that its vegan! ... show more
Reviewed in the United States on May 6, 2024 by Thatgirlrayray

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