KATIVA Brazilian Keratin Straightening Kit - Alisado Brasileño Keratina + Potion 4 Heat Protectant Serum, Smoothing, Anti Frizz, Hyaluronic Acid, Argan Oil, Vegan, Up to 12 Weeks

My hair was dry, porosity, voluminous. My hair is basically completely gray and thick. Therefore, I am often coloring my hair which is already thick. I decided to try this product because the one I used before was no longer effective nor other two products that had a good rating but didn’t do anything to my hair, it was time consuming and a wasted. I was becoming frustrated with the idea to go to the salon and spend hundreds of dollars. I decided to try this product. What I first loved about this product is the smell. Is so good not toxic. I couldn’t believe it that was even going to work. I noticed that it took away a bit of the color from my hair that was built up and I loved it. It looks healthier, shinier and less volume. I am definitely buying again and doing my whole family’s hair with this.

I loved this product! Worked very well on my hair and I already knew the process since I have been doing myself for the last 12 years with another keratin brand I had to wear a mask to do it because the chemicals smelled very strong this. One did not and application was a lot quicker. While I loved this product I will now be purchasing at Target since ai found it there and a much better price.

Okay I’m rewriting my entire review after about 5 days of having the treatment. 1- it will strip any dye out AND lighten your hair and slightly bleach any towel you use in the process. (Small price to pay, trust) 2- if you have CURLS (not waves, be realistic here) it will not leave your hair air drying perfectly straight. It more than likely will be wavy. I only did 2-3 passes during the straightening part of the process. I have thin strands of hair and didn’t want to fry it off (it says to do 8 passes but adjust for your hair, it even says to on the instructions). I actually love the waves when it’s air dried. In the video with waves, there’s NO styling product (like what?!) it’s so manageable with so much less frizz and it’s actually soft with no product in! I thought this treatment was basically going to strip my hair of its curls to where it air dried stick straight so I had given it 3 stars when I first did the treatment. Just the softness and manageability of my hair now deserves 5 stars. I DEFINITELY will be doing this treatment again in the future. 3- you can dye your hair again without ruining the treatment. I dyed mine back to the color it was with garnier nutrisse ultra crème black box dye 3 days after the treatment and it doesn’t seem to have affected the treatment. 4- If you have some damaged ends you’re worried about, just trim a small amount then do the treatment. I only trimmed .5” when I should have done more and you can’t tell that my ends were even damaged. 5-it did take around 3-4 hours total. I think carefully brushing excess product out with a fine tooth comb before blow drying/straightening helped shorten the time along with fewer passes while straightening. I also only needed one box. Even though my hair is long, my hair is not as thick as it looks when curly. People aren’t exaggerating on the good reviews. I did take the time to comb out the excess product with a fine tooth comb before straightening and then didn’t put the flat iron very high (390). It really didn’t have a bad smell and my hair smells okay after straightening it unlike before. Before, it would have a burnt smell. I spritz some perfume in the air, flip my hair through it, and it smells amazing all day! A lot of people say my curly hair is pretty but they aren’t the ones that had to deal with the rats nest at the end of the day. I now know how to deal with the Texas humidity when I go back! One picture is my natural hair, the video is of it air drying (wavy) and then the morning after sleeping on it straightened. To be able to actually brush my hair is amazing! When I brushed my hair with it straight before, it would still get puffy. This product was a life (and hair) saver!

It is an excellent product; I have curly hair, and it left it straight. It smells good and met my expectations; I will buy it again in 12 weeks. However, I do suggest to the manufacturer that the products should come sealed; that builds more confidence for the customer who hasn't used it before.

I bought this product back in Feb 2026 and applied it March 22, 2026. I read through many reviews but didn’t see anybody with my 4a-4c hair write a review. As far as shipping and packaging - everything was as expected. The instructions were in tiny font - I did need my glasses! I don’t recall gloves being included in the box either. 🙄 In reference to the product expectation - it worked! My hair usually swells immediately after flat ironing. With this product, it did not. I noticed after washing the treatment out, my hair dried so easily and I was able to flat iron it so much faster! I did install microlinks immediately after and it blended flawlessly. I am sitting here 3 months later with my hair still blended and resistant to humidity. I did use additional products during my in between flat iron sessions to assist but I’m not sure it was necessary. I took a star because I felt like I nearly lost my life during application!! Idk what’s in the product but as soon as I started applying it, I began coughing. I chalked it up to allergies initially. Once I started flat ironing, the fumes were nearly unbearable. I was about 3/4 finished when I was about to give up but I saw the progress and decided to keep going. Please make sure you are in a well ventilated area. I had the exhaust fan, the bedroom ceiling fan, and a box fan blowing through the bathroom and I was still coughing my head off. It took a couple of days for the smell to fully dissipate. You may ask am I ok. I risked it for the biscuit. I go to the doctor regularly, I’m fine. 😊 I’m not sure I’m willing to do this one again though. Maybe if I were in a garage…possibly..idk. First two pics were with low heat flat iron. I was trying to recover. Last pic with the extensions to show how straight my hair is after a high heat flat iron.

I tried this Kativa Brazilian straightening kit and was very satisfied with the results. The instructions are clear, and the process is easy to do at home. After application, my hair was much softer and shinier, with less frizz, while maintaining a natural and healthy look.

Very good hair product, leaves a perfect and long-lasting straightening that does not mistreat it, leaves a spectacular shine

Purchased this to help my over processed frizzy hair. It did help quite a bit, it’s much smoother, softer, and way less frizzy. I do want to disclose a few things. 1. A little goes a long way. Be mindful on how much product you are applying. This product is a cream. Since you have to coat then dry your hair if you use too much it’s almost impossible to comb out and get dried. And hair does get very tangled. 2. Be careful on how high you set your straightener. I set mine to 400 and the high heat discolored a section of my highlights (must have stripped the toner, it turned orange!). Luckily I noticed it right off the bat and reduced the straightener to 350. I think it still altered the tone of my hair but not as bad. I only did 3 pass per section which was less than what was recommended. 3. Has a weird smell during / after straightening. It took about 3 washes to get the smell out. So this product does work. It can take approximately 2+ hours from start to finish. I would NOT recommend on newly color/toned hair as it could alter the color. I am on the fence on if I would use this again because I do feel like it changes the tone of my hair.

Magnificent just like I wanted.. it leaves the hair really soft and smooth also pretty easy to apply.! Not problems whatsoever I'm liking it so much definitely buying more 🙏

Excelente producto me encantó el resultado

سسسسسسييييييييييءءء وتساقط بعدها شعري بالهبللللللل

Ero un po’ scettica sui trattamenti liscianti da fare a casa, ma questo kit mi ha sorpresa positivamente. Le istruzioni sono abbastanza semplici da seguire e il risultato finale è molto bello, soprattutto per chi ha capelli crespi, gonfi o difficili da gestire. Dopo il trattamento i capelli risultano più lisci, morbidi e lucidi, con molto meno effetto crespo anche nei giorni umidi. Non dà quell’effetto finto o troppo “piatto”, ma lascia i capelli più disciplinati e ordinati mantenendo movimento naturale. Ho apprezzato anche il fatto che sia senza formaldeide e che nel kit sia incluso il siero termoprotettore. Il profumo durante l’applicazione è abbastanza forte ma sopportabile, mentre dopo il risciacquo resta piacevole sui capelli. La durata dipende dal tipo di capello e dalla routine usata dopo, ma nel mio caso il risultato si è mantenuto bene per diverse settimane. Ottimo rapporto qualità-prezzo rispetto ai trattamenti dal parrucchiere.

Super lissage, vraiment une valeur sûre (ca fait 6 fois que je le fais) Je conseille largement celui-là plutôt que la boîte violette de la même marque Kativa. Par contre je préfère être honnête : oui, ça éclaircit un peu les pointes. Si vous avez des mèches ou un balayage, ça peut légèrement virer orangé après le lissage. Perso, comme je n’ai pas trouvé mieux niveau résultat, ce que je fais c’est : lissage + patine derrière, et parfois une petite coupe, et franchement le rendu est nickel. Mais honnêtement, ce lissage est dingue pour discipliner les cheveux. Zéro frisottis. L’effet brushing tient même sous la pluie, avec l’humidité ou quand on transpire. Moi j’ai les cheveux qui gonflent énormément de nature, et en étant brune c’était toujours frustrant : tu passes du temps à faire un brushing parfait, cheveux lisses, soyeux, sans frisottis… puis tu sors dehors ou il fait un peu humide, et tes cheveux doublent de volume jusqu’à finir en mode Cléopâtre. Avec ce lissage, plus ce problème. Pour ceux qui ne s’y connaissent pas trop, voilà en gros les étapes : - laver les cheveux avec le shampoing fourni - sécher les cheveux à 100 % - appliquer le masque à la kératine sur toute la longueur (c’est une sorte de crème), puis enlever l’excédent une fois qu’il y en a partout - sécher les cheveux AVEC le produit dessus (et oui, c’est clairement l’étape la plus galère parce que sécher une crème sur ses cheveux, c’est pas évident) - démêler, coiffer et faire des sections - passer environ 10 fois le fer à 230°C sur de petites mèches jusqu’à avoir fait toute la tête - attendre 5 minutes que les cheveux refroidissent - relaver avec le shampoing fourni - mettre l’après-shampoing fourni - appliquer le spray thermo-protecteur - puis faire un brushing pour le premier séchage : c’est surtout cette première mise en forme avec la chaleur qui “fixe” le rendu. Après ça, plus besoin de refaire tout ça. Et le sérum thermo-protecteur à la kératine dans le kit est incroyable aussi. Vraiment, il rend les cheveux trop beaux pendant plusieurs lavages. Si la marque voit ce commentaire : sortez-le séparément, je l’achète direct. Pour celles et ceux qui hésitent à faire un lissage brésilien pour des questions de santé : j’ai vu que celui-ci est sans formol. Après, ça veut pas forcément dire que la composition est parfaite, donc si des gens s’y connaissent mieux, je veux bien leur avis. Par contre petit conseil important : évitez de mettre le produit sur le cuir chevelu parce que ça brûle. Et quand vous passez le fer à lisser, ça sent vraiment fort. Si vous pouvez le faire dehors avec un ventilo dirigé vers vous, ou dans une salle de bain avec fenêtre grande ouverte + ventilo, faites-le. Franchement, il faut bien aérer.