Frequently Asked Questions

Is this a keratin treatment for frizzy hair?
Yes. It is specifically developed to help improve manageability and reduce frizz in medium to coarse hair.
Is the formula formaldehyde-free?
Yes. This treatment uses a formaldehyde-free smoothing formula.
How does this anti frizz keratin treatment help?
The treatment helps smooth the hair surface, making hair softer, easier to style, and less prone to everyday frizz.
Before
After

Transformative Smoothing Treatments for Long-Lasting Results

Keragen’s Smoothing Treatments are developed with advanced keratin technology to deliver professional-grade results. Whether you choose the gentle formaldehyde-free formula, the powerful Forte treatment for resistant hair, or the quick Express option, each is designed to eliminate frizz, reduce volume, and enhance shine. These treatments not only leave hair silky and manageable but also strengthen from within, improving texture and resilience over time.

Customer Reviews

Overall rating: 4.2 / 5 from 151 reviews.

Customer photo review of KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

I've used this product twice now on my 4c hair and it works great! Easy to use, and keeps my hair straight for weeks (I sweat from my head a lot, and my 4c hair usually reverts in hours w/out treatment). I don't even traditionally wrap it at night, I put on my scarf and bonnet, that's it! And, my hair reverted fully on the first wash with NO DAMAGE to my kinky hair. While this product works great, BEWARE: On sensitive skin, you will need ear protection because the treatment is very irritating on the skin. Also, make sure that you DON'T apply on the scalp, for you will have extreme irritation. Overall, I like this product, would recommend and repurchase.

KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

It doesn’t soften the hair. My hair are not very frizzy so I was expecting good results but it didn't make any difference to my hair! They are still frizzy! I also bought very expensive shampoo and conditioner of the same company. It’s such a waste of money and time. Only positive thing is, it doesn’t have that pungent smell.

KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

I use this to soften and defrizz natural curls. I love my curls and only want to take out the frizz. I only passed the hot iron over sections of my hair 4-5 times (instead of 8 or more tomes). If you do more than 4-5 , you’ll be moving towards straight.This product has been discontinued in the USA, so I was thrilled to find it on Amazon.

KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

Customer photo review of KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

I wish I loved this product. My friend had me over and applied this for me - we spent 4 hours and followed the directions to the letter.Now, my hair is naturally thick, wavy/curly, and can get extremely frizzy and knotty, which means I lose a lot when brushing. My hope was that this product would smooth my hair so that it didn't get so tangled and maybe would actually grow. Well, the first day, it looked amazing. But my hair looks pretty good when straightened *anyway*. By evening, my frizz started back up again. I was so disappointed! I straightened it again the next morning, and it looked good again. I waited 4 days to wash it, and the only difference with my hair after is that it seems less rough. Right now, my hair is completely back to it's old frizzy self, just over 1 month later. And it still gets very knotty and has the same fall-out rate. It still looks good when I straighten it, but I've used more heat in the last month than I have in the last year. I'm not about to keep damaging my hair!

KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

Customer photo review of KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

As a natural black woman with 3b/c hair, with multiple curl patterns, I genuinely only like to wear my hair straight, which can cause a lot of heat damage. After debating cutting my hair from a messed up chemical curl process, I decided to try one last thing before giving up completely, and starting over with a brand new head of hair. My keratin hair journey began on May 11 of 2023 and as I sit here today after bleaching four pieces of my hair, I am the happiest I haven’t been with my natural hair. Over the past several months, my hair has been able to retain heat & a silk press for WEEKS. I am no longer at the mercy of my blowouts. I wash my hair when I want to! It has grown exponentially. I have less breakage than I did before. It’s smooth. It’s soft. I feel like my hair actually retains the oils I put in it now. As I said, I love my hair and blend so great with clipins, I wear wigs less and everyone loves my hair when I style it. This is great for people who love straight hair !!! I am three treatments in, I’m trying to tell you, this has been a game changer, and a money saver!!!!!!! I had to come back and leave a review because I am thoroughly satisfied with my hair health & I’m thankful for this product line!

KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

Customer photo review of KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

Left photo is before, right photo is after. I found this keratin treatment about a year ago when I was looking for a formaldehyde free keratin option. I typically have 3c/4a curls and I let this sit for about 40-45 minutes and I get sleek results! People saying it leaves their hair greasy are most likely NOT rinsing the product out all the way and are using too much to begin with. You only need 2-3 oz of product and you have to thoroughly rinse it out of your hair. The formula seems thicker than what it used to be but I don’t mind, it actually makes it easier to brush on. The smell is not bad either. No tears from fumes, no itchy throat, this is a winner for me. Plus with how much you get in the bottle, it should easily last me a year or so. Will continue to purchase this keratin treatment brand.

KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

Customer photo review of KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

I just got a haircut and realized that my blow dryer just wasn’t cutting it. My hair would get frizzy and wavy because of the Florida humidity. I have type 2C hair that is thick. I decided to research some at home Keratin treatments that omitted Formaldehyde. I found this and read the reviews. Although I didn’t find a ton of info on this product, I decided on this one over a few others.I received the product this morning. I cleaned my hair with clarifying shampoo from a different brand. I towel dried my hair and brushed it.I used a baby comb, gloves and a sponge brush to get started with the application. Section by section I applied the product and combed it through. I can see the appeal of maybe someone helping with this step, but it’s not impossible to do solo. After it was fully applied to my entire head, I set a timer for 35 minutes and brushed my hair every 5-10 minutes.I rinsed the product out in the shower. I then dried myself off and applied a hair mask from another brand that I had. I left it on 5 minutes and got back in the shower to rinse it out.Then I blow dried my hair in three sections with my Dyson hair dryer and a round brush. Then section by section I flat ironed my hair with my flat iron.There was no chemical smell, no funny film on my hair. My hair is just sleek, smooth and straight! Really it’s the straightest it’s ever been. I used probably 1/6 of the bottle for one treatment. So there are plenty of treatments in this bottle!

KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

Customer photo review of KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

This worked just as good as the keratin treatment I get at a hair salon. I decided to do it myself because I couldn’t pay $230 at the salon. This was a fraction of the price.The process:Took me about 3 hours from washing my hair to being completely done. That’s usually how long it takes at the salon. This is how I did it. Washed my hair with my regular shampoo and last wash with clarifying shampoo from this brand. Towel dried and brushed it to detangle, with no product. Separated my hair into 4 sections and started from back to front on each side. Got one side saturated with product using a brush (like the ones for hair dye) not touching my scalp (it will be itchy if you touch your skin) once the section was done I put a timer for 15 mins (I have thick long wavy very frizzy hair) did not clip my hair up because it would make product touch my skin. Then went on to the next section. Once I was done with the second section I looked at how long the timer had left. Then waited and once the timer was up I went to rinse the first section and put a timer for whatever time the second section had left (that way I didn’t go over the 15 mins) then went to rinse the second section and repeated the process with the other side of my head. Once I was all done I did one last rinse with all of my hair (I rinsed in my kitchen sink but you can do it wherever it’s easier, I didn’t want to do it in the shower so the product wouldn’t spread all over my body). Then I used the hair treatment from this same brand and let it sit for 10 mins. Rinsed it and blew dry my hair. Once my hair was all dry I used my flat iron on the temperature before the highest and took 1 inch sections and did 4 passes on each hair sections.The results:INCREDIBLE! It was hard work but it was so worth it. My hair was so silky smooth and shiny. Super straight. It did smell like the chemicals and didn’t go away until I washed my hair again. When I washed it I let my hair air dry and it was a huge difference from before getting the treatment. My hair is not as wavy anymore but not straight either. It feels very soft and the best part is that like 95% of the frizz is gone! My hair feels so healthy now and I have enough product to do another treatment so for me who has thick, long and a lot of hair I can do 2 keratin treatments with one bottle.

KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

Customer photo review of KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

Espere hasta lavarme el cabello para ver bien los resultados. Como pueden ver en la foto el resultado no es tan bueno como lo esperaba, yo enjuague el producto luego de los 20 minutos de dejarlo en el cabello, seguí las instrucciones! Quizás no se deba enjuagar si no secar y planchar el cabello con el producto aplicado. Es la primera vez que lo utilizo! A pesar de que se ve como explotado en la foto si logro suavizarme un poco el cabello! Por eso no le doy 5 estrellas.

KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

Customer photo review of KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

Like the product would so recommend it’s worth the money and time… usually go to a professional to get done bottle will let me use 2 more times … hair mask is amazing…took me 3 hours to do followed the directions, and it does it’s work… now remember the product is only rinsed off your hair so your hair feels a little coarse can’t wait to wash it and see the outcome ..

KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

Customer photo review of KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

My daughter has thick natural 4c hair and this keratin treatment gave her fabulous results. We used all three products (the clarifying shampoo, formaldehyde-free keratin treatment, and hair mask) to make sure we got the best results. We were kind of weary about trying it at first because it's recommended for fine/medium hair, but the ones for coarse hair contained formaldehyde and we didn't want that. After doing the full treatment we flat ironed her hair at 450 degrees with only 2 passes and small sections.

KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

Customer photo review of KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

I have very frizzy, dry hair and decided to try this product. I will say that it is very time consuming from beginning to end. However, the result is so worth it! My hair is so shiny like glass and it is so smooth and soft. I am excited to see how it will look once I wash my hair.Also, when the product touched my skin on my ear or neck it itched a little bit. If you have sensisitive skin be careful.

KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System

I've tried everything to keep my hair from frizzing up while being a straight natural. I refuse to get a relaxer again. But nothing worked but Keratin treatments. So to avoid paying 200 bucks to get it done professionally I bought the original Keratin treatment with formaldehyde and it made my hair bone straight and it lasted even when sweating. But the smell was just unbearable. So I then ordered the formaldehyde free formula and I am shocked that it worked just as well. No fumes at all. I did not use the exact directions though. I washed my hair with Loreal everpure Bonding shampoo 4 times because I don't like the way clarify shampoos make my hair feel. Then I towel dried my hair and basically slathered the product onto my detangled hair in 4 sections. I probably used a 3rd of the bottle. But I have long hair. I left it in for 1 hour on my 4A hair. Then rinsed with warm water. My hair felt very silky. Then I went straight to blow drying. I don't feel it needs conditioning after the treatment. It was such an easy hair experience. Then lastly I Flat ironed my hair 3 times in each 2inch section. I just made sure my hair was super flat. I'm writing this right after so I don't know how long it will last but it really doesn't matter because I'll use it as often as possible because the process was so easy and it makes my hair feel so great. Also my hair has never been this shiny. I'm blown away. I'll continue to buy this. I don't ever write reviews but this was so amazing I had to. If your hair is unruly, tangled and gets frizzy from humidity easily then get the formaldehyde free formula NOW. LOL

KERAGEN Brazilian Keratin Smoothing Treatment Formaldehyde-Free Blowout Straightening System