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✨ Unlock salon-grade sleekness at home—because your hair deserves the VIP treatment!
KERATIN RESEARCH 4x120ml Complex is a professional-grade Brazilian keratin hair treatment kit infused with argan and coconut oils, designed to deliver long-lasting (4-6 months) frizz control, intense hydration, and salon-quality shine. This express formula allows washout within 8-12 hours, saving time while strengthening and smoothing coarse, curly, or damaged hair with a complete 4-step system including clarifying and moisturizing shampoos plus conditioner.







| ASIN | B09RP2VZVS |
| Best Sellers Rank | #57,618 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #30 in Chemical Hair Straighteners |
| Brand | KERATIN RESEARCH |
| Brand Name | KERATIN RESEARCH |
| Customer Reviews | 4.2 out of 5 stars 1,066 Reviews |
| Hair Type | Coarse, Frizzy, Curly, Chemically Treated, Damaged |
| Item Form | Liquid |
| Item Weight | 24 Ounces |
| Manufacturer | KERATIN RESEARCH |
| Manufacturer Part Number | GLVAR |
| Material Features | Natural |
| Model Number | GLVAR |
| Product Benefits | Frizz Control,Hydrating,Intense Conditioning,Moisturizing,Shine,Smoothening,Softening,Split Ends,Straightening,Strengthens Product Benefits Frizz Control,Hydrating,Intense Conditioning,Moisturizing,Shine,Smoothening,Softening,Split Ends,Straightening,Strengthens See more |
| Scent | ORIGINAL |
| Scent Name | ORIGINAL |
| Special Ingredients | Argan oil, coconut oils, proteins, amino acid complexes |
| Unit Count | 4.00 Fluid 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.
S**L
Excellent At Home Keratin Treatment!
Oh I wish I could add a before and after picture! Went from frizzy to smooth in one treatment! I used this Original Formula Keratin tx after shampooing with the clarifying shampoo the night before-yup I'm that lazy I let it airdry overnight, I didn't want to blowdry my long hair twice...Anyway, the next day: took my time, applied the easy method (with my fingertips), combing out any excess with a fine tooth comb, followed directions: cover with plastic for 30 min, blowdry 100% and flat ironin small sections: and WOW-looks like I went to the salon! I am soooo impressed with this product. Does it smell like keratin, yep, so use in well ventilated room. I suggest using less is more (because you leave product in hair and have to dry it 100% before flat ironing), I used about 1.5 oz of product and my hair is long, med fine, with uneven wave/curl pattern at nape and back of head especially: so I sectioned and made sure I straightened those areas most since they are hard to reach and my problem areas. And with this Florida temps being both hot and humid, my hair was a frizzy, hot mess-not anymore!!! I now LOVE my hair after this treatment: Smooth, Straight, Sleek! Super product: 5 stars+
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**7
THEE WORSE!!!
This made my hair frizzy and dry. I used this correctly and followed ther directions. I didnt have any more of my usual keratin treatment which makes my hair super duper straight, not dry or frizzy. It want going to be delievred in time so I had no other choice but to buy this Keratin Research...bad mistake!! Next tiem i will wait for my PLACENTA LIFE KERATIMASK Brazilian Straightening Kit with Keratin and Hyaluronic Acid - Keratin Treatment.
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.
D**A
Amazing product
Second time buying this keratin treatment. It is extremely easy to use and leaves your hair shiny and soft. The first time that I use it my hair was really burnt by bleach, after like a month I got this treatment and it helped my hair a lot. It is not magic and is not going to bring you back from melt but it did help my hair to feel softer and shiner again.
K**A
Resuelve
Más o menos
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.
C**B
Keine Wirkung – Geldverschwendung
Ich bin sehr enttäuscht von diesem Produkt. Die Flaschen sind sehr klein und die Menge reicht kaum aus. Ich habe das Produkt wie empfohlen verwendet, aber leider überhaupt keine Wirkung festgestellt. Für den Preis lohnt es sich meiner Meinung nach nicht. Ich werde dieses Produkt definitiv nicht noch einmal kaufen und kann es leider nicht weiterempfehlen.
V**I
Unersetzbar
Arbeite professionell damit. Auf ein gutes Ergebnis kann ich mich immer verlassen. Einige Produkte davor ausprobiert, keins kommt hier nahe.
D**H
Best Ever!
I have used a lot of different keratin treatments in the past but this is literally the best by far! I clicked on the QR code and followed instructions of how to apply. It was easy and the results.. perfect. Did not leave any residue and my hair was soft and silky. Even after i washed my hair for the first time after, my hair is so much more manageable! I have already recommended to to family members and will definitely continue to use this product in the future! I am not sure but I think my hair is type 3b or 3c.
A**E
Not long lasting,only 3 weeks
Not that long lasting despite following the instructions to a tea. Lasted for about 3 weeks then started reverting back. Won’t buy again. Still giving 3 stars because the initial result was very pleasing.
H**!
Produkten luktar inte så mycket och funkar bra.
Jag är jätte nöjd.
Trustpilot
2 weeks ago
2 weeks ago