

✨ Unlock your best hair days—professional smoothness, zero salon wait! ✨
KERATIN RESEARCH Brazilian Keratin Hair Treatment is a salon-grade, long-lasting hair straightening complex enriched with keratin, argan oil, and collagen amino acids. Designed for all hair types, it delivers smooth, shiny, and manageable hair with a quick, easy application that fits busy lifestyles. Trusted by professionals and loved by users for its nourishing, damage-repairing formula and time-saving styling benefits.











| ASIN | B0BQL4RNRS |
| Best Sellers Rank | #53,218 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #23 in Chemical Hair Straighteners |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,008) |
| Is Discontinued By Manufacturer | No |
| Item model number | KR |
| Manufacturer | KERATIN RESEARCH |
| Package Dimensions | 6.93 x 3.11 x 2.09 inches; 4 ounces |
R**.
Great affordable straightening option for men with curly short hair
I have had very frizzy/curly blonde hair since I was young. I now have short hair, slightly over an inch long on the top. I like to blow dry my hair to style it into shape. I have been using this treatment for 2+ years now, about every 4-6 weeks. Without this keratin treatment I can't really shape my hair at all. Blowdryers don't create shape that holds and flatirons make my hair awkwardly bone straight. Pros of this product: - Result is great for 3-4 weeks and makes my hair so much faster and easier to style with a round brush. This saves me so much time fighting with my hairspray and comb to get the front of my hair to look nice. - Very quick to apply on men's short hair (takes me like 5-7 mins to comb through). - Can wash out next day, don't need to wait 3 days like common salon products. I usually try to wash out after 12 hours, but have waited as little as 8 hours before too. Cons: - Once your roots grow out with short hair, it becomes much harder to style. So I do have to re-do this process about once monthly. That's not the product's fault, but worth calling out for men with short hair considering this. I think the net time savings though every morning is worth the 45-60 mins this takes me monthly. - To get the best results, you'll want to buy a skinny straightener specifically designed for men with short hair. That enables you to get down to the root of your hair when you straighten it during the treatment. There are plenty of affordable options on Amazon. - The smell is chemically, but honestly not that bad. - The fumes do irritate my eyes. But it's not unbearable. Having a fan is a game changer. Merely cracking the window doesn't really reduce the irritation. Overall I very much recommend this product to men with curly hair who want the ability to shape their hair more. Love the way my hair looks, especially the first couple weeks after I do the treatment.
N**E
Follow directions!
Years ago, I had use Ion's Smoothing system. It worked pretty good. The idea of blowing my hair dry and straightening it without product was scary so I decided against the manufacturer's directions to use my own products for the blow dry and flat iron processing. My results were still pretty good. A year ago I started to notice that my relaxed hair was showing really bad damage around the hairline kind of crunchy, kind of thin, and I was concerned, so I decided to begin taking supplements suchbas liquid collagen, biotin and sawgrass. About 6 months ago, I began applying batana oil. These seemed to be working, but yhe results weren't 100% yet. I decided to go back to keratin. I chose this system because I couldn't find the Ion Smoothing System. I followed the directions and my results were really good. I used an oblong hair dryer for the blow dry. Then I used a ceramic heat brush as I sectioned my hair. Before flat ironing each section in 1/8 increments, I combed it out with a hot comb. I also used a pencil flat iron for the areas around my hairline (this was the final step that really made everything stand out). I did not use any other products until I finished the processing. I wrap my hair and for the week after initial processing and make sure that it didn't get a drop of water in order to maintain the look. Now I don't even need to flat iron it ... blowing it is fine. Using hot curlers versus a curling iron also gives a more polished look. FYI, I dye my white Grey hair Tiger Brown using Herbb shampoo
L**.
Works so well
Even though I color my hair myself, I was initially nervous to try to straighten my hair. It was much easier than I thought, and it definitely does take 2 - 3 hours from beginning to end. Not only does my hair look great and it's so easy to take care of now, but it's so soft too. I've become one of those females who's always playing with her hair... but I can't help it!
T**E
Worked Well on My Tight Curls
I used this keratin product last year, and overall it worked pretty well for me. I have really tight curls, and it definitely made my hair straighter and easier to manage, especially when I did a sew-in. It didn’t get my hair bone-straight (which makes sense given my curl pattern), but it still did its job and made a big difference. One thing to note: the smell is very strong. I highly recommend applying it in a well-ventilated area or somewhere with windows open, because the scent lingers for a day or two. Also, you have to leave it in overnight for the best results. I’ll admit I was a little impatient, which might be why I didn’t get the maximum outcome. That said, for the price and purpose, it’s a good product if you’re looking for something to help loosen curls and make straight styles last longer.
B**Y
It works
This product works really well on me, at the beginning I didn’t have any faith on this product because is a cheap product for all the things that it offers. I got a 3b curly hair and I let sit the product for two days and my hair was straight. I no longer need to use a straightener or blow-dry my hair all the time because my hair is super straight. The only bad thing about the product is that it burns the eyes but it has a nice smell. If you use the product step by step you will have straight hair.
D**Y
Gummy and doesn’t work
This is the first time I’ve used Keratin Research, and I hate it. It is very sticky and gummy 2 days later. It did not straighten my hair as much as other brands have. I’m going to have to redo with another brand in a few weeks. Wasted my money.
M**A
formaldehyde and bad small
Contains the hazardous chemical formaldehyde and released a very terrible smell when applying straightener. The smell was so irritating that made my eyes extremely uncomfortable. I wore a face mask but felt a sore throat after the treatment. It does have some effects but not impressing. Won’t try again. I think sellers should show a completed ingredient list in the product description to let us know it contains formaldehyde.
V**I
Arbeite professionell damit. Auf ein gutes Ergebnis kann ich mich immer verlassen. Einige Produkte davor ausprobiert, keins kommt hier nahe.
H**!
Jag är jätte nöjd.
M**Z
Keratin Research Brazilian Treatment I recently tried the Keratin Research Brazilian Keratin Treatment, and I’m genuinely impressed with the results. My hair became noticeably smoother, shinier, and much easier to manage after just one application. The frizz was reduced dramatically, even in humid weather, and the straightening effect lasted longer than I expected.
A**Y
Follow instructions to the letter hair will last a good 12 weeks
E**I
Das war sehr schlechtes Produkt die ich keiner empfehle , er macht die Haare komplett kaputt und jetzt muss ich mein haare viel schneiden nur wegen diese Produkt , schade für 40€ !!!
Trustpilot
2 months ago
1 week ago