

✨ Unlock your hair’s ultimate smoothness and shine — because your look deserves the best! 💁♀️
GK HAIR Global Keratin The Best COCO is a 3.4 oz professional-grade keratin hair treatment designed to deliver a Brazilian blowout experience at home. It provides intense frizz control, restores moisture with a nourishing Brazilian complex, and leaves hair silky smooth and shiny. The formula is free from harsh chemicals like formaldehyde, ensuring safe, long-lasting straightening and manageability for all hair types.



































| ASIN | B09SKLJYRT |
| Best Sellers Rank | #31,488 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #8 in Chemical Hair Straighteners |
| Customer Reviews | 4.0 4.0 out of 5 stars (1,828) |
| Item model number | GK-P-TBC-100 |
| Manufacturer | GK HAIR |
| Product Dimensions | 3.23 x 3.23 x 2.64 inches; 3.4 ounces |
| UPC | 815401018888 |
A**A
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.
T**O
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.
M**N
What happened to this formulation?
Either the formula has changed, or I received a fake one. I’ve been using this treatment every 3 months for years, but won’t be purchasing again. This time, the treatment had that metallic sheen of shampoo, and even felt like shampoo as I applied it to my hair. It usually looks more like conditioner. I waited the same amount of time I always do (60 mins) before washing it out and might as well have done nothing. Hair still has the same frizz, and feels dryer than a desert, which makes blow drying and straight ironing it after feel like I’m just adding to the damage. I’ll be looking for something else. So lame, this has been my staple product for so long.
P**S
Perfecto!
I don't believe this is over-priced at all. Me: I'm multi-racial. My hair is thick (Polynesian, Asian, Portuguese & Italian descent); long (mid-back) and has a mind of its own (wavy, curly, frizzy & dry). My hair "drinks" conditioner like a camel in the desert. I can straighten it- but it doesn't stay that way for long. With product, I can let it air dry- but it looks horribly messy. With humidity- I end up "bunning" it- which pulls on the strands, causing breakage. Getting my hair professionally straightened, or relaxed, costs well over $250 each time. I didn't have a round brush to dry my hair with; my straightener has ceramic plates (not titanium); and I didn't order the $20 bottle of GK ph+ clarifying shampoo (-I used a $4 bottle of Neutrogena Anti-Residue shampoo). Because I didn't use the exact items, I'm sure my application won't last 5 months- and that's ok! I don't mind doing the process again because it was hella simple! I was pretty surprised at how soft my hair felt, afterward. My daughter couldn't stop running her fingers through it. Last time I did this in a salon- my hair ended up stick-straight, w/no life. I couldn't add a wave, add volume- nothing! It also fried my hair & the strands broke off (she burned my scalp & I could smell my hair, burning). Nice thing about this "GK the Best Hair Taming System' is "I" had complete control over the process; "I" decided how long to leave it on (25 min); "I" decided how I wanted to straighten it; and "I" can do it again, on my own time and when I need to (3 or 4 applications in the bottle). *4 Salon applications= $1000 ($250+/each) VS. 4 home treatments=$108 (one time cost). This Amazon price tag was worth it! This is a winner! FYI- (1) the writing on the bottle is really, really small! -Invest in a magnifying glass, or find the directions on line- it's important you follow the right directions for the type of treatment; (2) it doesn't come with an application brush; (3) - or, gloves. I expected it to & for as much as the bottle cost, it would've been nice.
L**.
Excellent product
S**E
Le top!!! J'ai les cheveux épais et friser, ce produit me correspond. Pour les gens qui ont les cheveux fin attention car ça diminue beaucoup le volume. Et aussi les gens qui tiennent à leurs cheveux bouclé, ce produit lisse les cheveux et même après le shampoing ils restent raide. Mais les cheuveux sont souple, légère et brillant. Sans odeur c'est parfait. Moi j'ai utilisé inoar pendant des années mais depuis que j'ai ressayé le nouveau the best, je suis complètement tombé sous le charme de ce produit.
J**E
El mejor tratamiento que conozco
J**J
Saves time and money. Excellent product to diy without breaking your wallet at the salon. Effective and easy instructions to follow. Will buy again!
H**R
I am not satisfied with this product .I have used this product and it give me no result also it damaged my hairs .
Trustpilot
2 months ago
3 days ago