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KERATIN RESEARCH

Brazilian Keratin Hair Straightening Complex (2x 120ml) - Blowout Long-Lasting Treatment with Argan Oil for Smooth, Professional Straightening Results - Keratin Research

    • Based on 7,359 reviews
Condition: New
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$37.95 Why this price?

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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Apr 6
Order within 3 hours and 19 minutes
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Size: 4 Fl Oz (Pack of 2)


Features

  • Straighten, smooth, strengthen, and repair damage across all hair types.
  • Results last 4-6 months. Save time and wake up with smooth, beautiful hair every day.
  • Easy-to-apply instructions. Responsive support available to answer any questions.
  • Professional-grade results at home. Effective formula containing a powerful blend of Keratin proteins, Argan oil, and Collagen Amino Acids.
  • Includes: straightening cream and clarifying shampoo.

Brand: KERATIN RESEARCH


Hair Type: All


Item Weight: 8 Ounces


Product Benefits: Frizz Control,Hydrating,Intense Conditioning,Moisturizing,Shine,Smoothening,Softening,Split Ends,Straightening,Strengthens See more


Item Form: Cream


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 2 x 4 x 4 inches; 8 ounces


Item model number ‏ : ‎ SG_B00S1S2T3O_US


UPC ‏ : ‎


Manufacturer ‏ : ‎ KERATIN RESEARCH


Country of Origin ‏ : ‎ USA


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Apr 6

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.

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

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Top Amazon Reviews

    • Great product
Size: 4PC EXTRA STRENGTH
Review Image by LLooks great LLooks great
I have good experience with the Gold Level keratin treatment but wanted to try a formaldehyde free treatment and decided to try this one. I got the results I was looking for.
Reviewed in the United States on March 24, 2025 by LLooks great LLooks great
    • This Product Worked Well For My Type of Hair
Size: 4 Fl Oz (Pack of 2)
Complex Brazilian Keratin Hair Blowout Treatment really worked for me. I purchased it several months ago and I was very skeptical to try it. I thought it would not work or that it would be difficult to do the treatment myself. I have fine, wavy hair and because I'm aging (I'm 54), there is less hair on top of my scalp now. I don't get pretty curls or waves when my hair dries naturally. I get thin frizzy waves. Going to the beach, or being in humid weather is awful. It curls up in weird ways. So, I decided to try this since I tend to do the Brazilian Blow Outs pretty regularly. I wanted to see if I could save some cash with something that worked for others. I'm really glad I tried it as it did soften and relax my hair to the point where it did not curl up weird. This product will not leave your hair stick straight though. It also contains formaldehyde which some people are concerned about. The amounts are not high enough to deregulate though. Here's what I did: I washed my hair twice with the clarifying shampoo and followed the instructions. I wore a disposable face mask and gloves. I used a brush and worked the product through my hair, one small piece at a time from root through ends (do not apply to the point where it is dripping as it will coat the hair heavily and you'll end up with oily looking hair). I followed as instructed and left it on the required length of time. IMPORTANT: Because this product contains formaldehyde and other chemicals (any liquid that straightens hair is a chemical) you will need to heat your hair in an area that is well ventilated. I used a fan to blow the fumes out of my slider window. Do this when you begin to blow-dry the hair and flat iron it. The fumes are strong and burn your eyes. Also, you will need a second mirror to see the back of your heat to ensure you are taking the bend out of the hair there (cow licks) appropriately and uniformly around that part of your head. This is very important because you do not want some of your hair flat and other parts wavy when this dries. Flat iron in the direction that you normally style and give yourself a little gentle curve where you think you normally like so it's not sticking straight at the ends. I did not flat iron the top of my hair as many times as I did the back because I have less hair there and I did want to leave some body on the top. Leave the product in once you're done. I left it in about two hours before washing because I was going out that night. I think next time I use this I will leave it on a lot longer. They recommend at least three hours or even overnight. Nice results. Not stick straight but not wavy. It's been about a month since I used it and my hair is still manageable, noticeably flatter, but there is a bit of body too. It dries much quicker too and even though I still have to flat iron a bit, it's not at the higher temperature setting. I find that 360 degrees does the trick where before it was at 400 degrees. Not good to do that high ever. I would say this product worked very well for me. It's not as strong as the Brazilian Blowout but I also don't feel that it was not effective. It was effective, and it only cost a fraction of what the Brazilian Blowout costs me. I would buy this again. ... show more
Reviewed in the United States on September 14, 2021 by Anna E.
    • THIS WORKS!!!
It really does work!! I have tried every type of treatment out there and my hair is so unresponsive. I've tried relaxers, I've tried perms with big curlers to soften the curl, I even got a brazilian hair treatment in the salon that did NOTHING. And let me tell you, I have very stubborn hair. I have 3B type curls and have always struggled to control it and make it pretty. My hair is coarse and fine and 50% frizz and the curls aren't uniform so it's not a good look. It takes an hour to straighten it and once it's straight it's so stiff that it doesn't look natural. I chose this product because it had such a high rating and because it seemed to be legit. I was very suspicious of all the products I looked at because even though they used so fancy name brand product on my hair at the salon it obviously wasn't strong enough to work on my hair (it did work on my cousin's wavy hair though, and took out almost all the frizz, my hair is just stubborn!!) Also, I didn't want to spend a ton of money on something that might not work so I picked this because it was a trial size. I only used about half of it so there's enough left over for another go around, it's awesome! I didn't even follow the directions and it still worked wonderfully. Let me tell you what I did: I didn't use a clarifying shampoo because I didn't want to go buy one, I just washed my hair really thoroughly and scrubbed at my scalp really good to clear away any dead skin or product. Then I rinsed my hair really well to best get rid of any soap residue. I blew it dry (a terrifying sight for my fiance!) and started to apply the product. WHEW the chemicals are strong. I would recommend doing it in a well ventilated room if at all possible because I kept having to stick my head out of the bathroom so my eyes would stop burning. I was not delicate about the application, I ended up putting too much in and my hair was def over-saturated but that's what I wanted! I let it sit in my hair for thirty minutes while I surfed the internet. I then took a fine comb and combed through my whole head getting rid of the excess product. The directions say to immediately start straightening on soaking wet hair and to me that just felt wrong and like I was going to burn my hair. So what I actually did was blow my hair dry again and THEN I straightened it. I took extra time on each section to make sure I sealed the product into my hair. It probably took an hour but obviously it was worth it. Then the gross part is that your hair is stiff and sort of greasy from the product and you can't do anything about it. You're not supposed to pull your hair back, you just have to leave it straight and down and looking yucky. The directions said to leave it in for 72 hours for very curly hair, but I had to shower after 24 hours because I had to go to work. So for the first three days I didn't shampoo it, just rinsed it and used a little conditioner, which I hardly even needed cause it worked so well. My roots are straight which is a HUGE deal as that is usually the curliest part of my hair. There is still a good amount of curl to it (because the directions say "for very curly hair leave product in for 72 hours" and I only left it in for 24 hours) at the bottom but it's pretty and manageable. The biggest difference is that there is practically ZERO frizz and the hair is SO soft. It actually looks so much healthier than before I did the treatment. I'M SO HAPPY WITH THE RESULTS! As I have half the bottle left, I will probably try again in 3 months or so and I will leave it in for longer to see if that affects the curl. I really don't feel comfortable with flat ironing soaking wet hair like the instructions tell you to but maybe someone else can let me know how it went for them and I will give it a try. I really think if I had followed the instructions to a t that my hair would have come out beautiful and straight. No regrets, I still love the results! ... show more
Reviewed in the United States on February 11, 2013 by Brittany
    • Works good, but I use it different from the instructions
Size: 4 Fl Oz (Pack of 1)
I just use this on days that I want to straighten my hair. I wash as normal and apply this as I would any other product right out of the shower blow dry and use a flat iron. As soon as I wash my hair, it’s curly again, but this is great for a nice soft straight hair look
Reviewed in the United States on February 20, 2025 by SLC

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