KATIVA Brazilian Keratin Treatment Kit – At-Home Formaldehyde-Free Hair Straightening with Hyaluronic Acid – Up to 12 Weeks Frizz Control for Curly, Wavy, Frizzy & Coarse Hair

I've tried several straightening treatments, but this Kativa Brazilian Straightening truly lived up to my expectations. The process was fairly easy to apply, and best of all, it doesn't contain formaldehyde or harsh ingredients, which gave me great peace of mind.I used it according to the instructions, and in the end, my hair was straight, shiny, and very soft. What surprised me most was how long-lasting the effect was: it actually lasted the promised 12 weeks! I also loved that it contains hyaluronic acid and argan oil, as I noticed my hair was more hydrated and manageable.The product doesn't have a strong smell, which is a plus. I would recommend it to anyone who wants a professional straightening treatment without the side effects that other treatments can have.

This stuff is amazing- but there aren’t detailed instructions on the box. Thankfully, I watched some YouTube videos before I used it and I got beautiful results with shiny healthy hair and zero damage. My hair is now silky straight (and STAYS bone straight until washed) from just blow drying and, when just washed, my curls are looser.Some tips before you begin:1. Do the hot ironing outdoors or by a window, in a well-ventilated area and wear a mask. The fumes are STRONG! I opened my window and had the hot irons sat on the window ledge in between use so that the fumes went outside and I stepped back. I also held my breath while I passed the hot iron through my hair.2. Wear gloves whenever you are touching the product. The gloves on the box are flimsy- you might want to get some better gloves.3. Set aside up to 2 hours for this process. It’s easy but tedious and time consuming.4. The solution lightens your hair a bit, so if you want to color your hair do it afterwards. I used a box dye the next day and my hair was just fine.Step 1. Wash your hair with the shampoo- repeat and blow dryStep 2. Apply the straightening cream. Let it sit for 15 minutes- I started counting the 15 minutes from when I finished the application. And then comb out any excess cream with a comb. 1 pack was enough for my hair. It might itch or sting a bit but this will subside once you start drying the hair.Step 3. Blow dry the hair in small sections. I used a hairdryer with a brush attachment which made it easier.Step 4. Flat iron- I set my irons to 380f and passed my hair through 6 times. You can pass your hair a few more times if you want. 6 times was good for me. I used a fine tooth comb to follow through after the irons. The fumes and steam will make you think you are frying your hair- but trust the process. Work in small sections to ensure you are getting every strand of hair.Step 5. Shampoo your hair thoroughly and apply the conditioner. Finish by blow drying. I was tired after all that, so I let mine air dry. I then colored my hair the following day and blow dried it afterwards.

Ok. I admit it. This stuff is amazing! I have very thick, coarse hair that is about chin length. No matter what conditioning or treatment products I use, my hair will “balloon” out. For years I used a regular relaxer about 3-4 times a year. It worked, but left my hair pretty flat for a week or so, and the chemicals were really hard on my hair.Came across this as I was getting ready to order the regular stuff again. After looking at all the reviews, I decided to try it.The application process is time consuming -as other reviewers have noted, do allow any large block of your time to do this. If you have never had one of these treatments in a salon or done it at home before, it will seem really strange. Read several reviews with tips for doing this- Imfound them very helpful. There are limited directions on the box so I recommend scanning the code in the box and getting the more complete directions from their site on line. Read, reread, and read the directions several times and make sure you are comfortable that you understand the process before starting the application. Anytime the instructions tell you to completely dry your hair, be sure you do COMPLETELY dry your hair! Also, if you color your hair, note that it will remove some of your color.I use a brush hair dryer instead of a conventional type and wondered if that would work- it worked just fine.One other tip: as others have noted, it can be hard to do the back of your head. I did my treatment a few days before I had an appointment for a haircut, so the little ends in the back that I missed were just cut off!Since using this treatment, I do not need a lot of leave-in conditioning and moisturizing products any more. The heat from your hair dryer and flat iron will sort of “reactivate” the treatment when you style your hair after shampooing and regular conditioning.I am amazed- my hair is de puffed”, straighter, soft, silky, and shiny. I am not sure it is going to last the promised 12 weeks due to the thickness and texture of my hair, but I am also not worried about damage to my hair with repeated use.Pictures: (1) May, 2025; (2) right before treatment, July, 2025; (3) during treatment; (4) right after treatment; (5) September, 2025