This is actually my 2nd time buying this product. i have 3b type curls. the first time i did it it relaxed a lot of my curls but my hair still had body and some curl to it i LOVED it. I was too lazy to follow the directions to a T. The second time i did it i followed the directions to a T and i washed my hair using the shampoo 4 times( didnt do that before) and i made extra care to make sure all of my hair was covered with the keratin treatment ( was lazy about it before) and once it was straight i kept it straight for three whole days ( only did 1.5-2 days before) everyday i put my straighter to like 350 degrees and straightened my hair again ( i didnt do that last time) at then end of the 3rd day i washed my hair and blow dried it and my hair is straight straight. no curls to it. straighter than expected. i still love it but i now realize if you want to relax all your curls then overachieve on the directions. My hair is so friggen soft too! now you arent supposed to get your hair wet but i have a man and we def did some romping and i sweat at my roots tried not to but hey you do what you gotta. i just straigtened any kinks. However i notice i have some kinks at my roots here and there so if you want pin straight hair. DO.NOT.SWEAT its not major kinks but they wont lay nice and it kinda looks weird thankfully its not everywhere just in two places. i love this stuff though. also i didnt use gloves the 2nd time around i didnt have any so i used a walmart bag and my other hand didnt have protection and it was exposed to the keratin treatment. my hand is been a dry mess eversince so wear gloves.
Update: its march now. Last time I did the keratin treatment was in November. My hair is frizzy and curly again so I did it again last night. My hair started pin straight as I stated. As time went on it went from pin straight, to a slightly curl in at the ends, to a soft wave, to wavy, to loose curls, to bouncy curls, to tight curls, to now how my hair is now which is a frizz head. The transition was very gradual and beautiful. I cant stress enough how much I love this treatment. I'll attach some photos for comparison.
Oh and do this in a well ventilated room! I was a dolt and didnt and the sting in your eyes is worse than cutting onions. If you close your eyes it will burn your nose. If you breathe through your mouth your throat will sting. If you are in a big room or one with windows you'll be fine. I was blow drying my hair with the product on it in a small bathroom. Not ideal.

I ordered this keratin treatment in March 2018 but wanted to try it a couple of times before reviewing. There were some mixed reviews so I want to be as detailed as possible, please bear with me.

First, some background: I had relaxed my hair since childhood and only a few years back decided to go natural. It was a learning curve since I had never dealt with my tight, frizzy curls (3C according to the curl pattern charts). As my natural, healthier hair continued to grow it was time consuming to manage so I needed a low maintenance alternative. I got my first professional keratin treatment about a year ago and loved it. I still had curls but they were not as tight and were a lot less frizzy - blow drying was a cinch, too. I could even wash, put a little product and leave my hair down! Loved it. Then my roots grew out and I went in for a second professional treatment. I did not like the results the second time because my roots never matched the texture of the rest of the hair. As my hair continued to grow it began breaking and falling out and the hair that had gotten the treatment twice never regained its curl. It reminded me of when I was growing out my hair post-relaxer and the two textures caused breakage. That's when I concluded that I should only apply the keratin to my roots (new growth) and not roots-to-tips. Unfortunately, my hair stylist said she couldn't do that (I suspect that had something more to do with $$) so that's when I decided to try to do it myself.

Onto the product review: This product works! I have now used it 3 times and love my results. Ultimately, I had to chop off the hair that didn't regain its curl (from the second professional treatment) and just continued applying this product to my roots. The only reason I didn't give it a full 5 stars is because the fumes are really strong and I would prefer a more natural product. I will finish using it until it runs out though. If you don't have a problem with that, then this product is perfect.

Here are some tips:
- Shampoo your hair 2-3 times with the clarifying shampoo to make sure any trace of oil is completely gone. (My hair is greasy so I have to shampoo 3 times.)
- When blow drying after the shampoo only dry your hair about 90% of the way. The product seems to soak in better this way.
- If it is your first treatment use the product roots-to-tips as directed. If it's not, only apply to the new hair growth and only comb through the new growth.
- Blow dry the hair 100% and flat iron as directed. Flat ironing will spread the treatment a bit which is fine, won't have much of an impact.
- If you have tight curls like me, leave the treatment in for 3 days before washing with the sulfate free shampoo. If you have finer hair or looser curls, I think 24-48 hours should be fine. But 4 hours is not enough time in my opinion.
- During the 2-3 days with the treatment in, retouch the treated hair with a flat iron (roots-to-tips for first timers, only the roots for subsequent treatments).
- Lastly, always use a sulfate free shampoo and conditioner. I used to do so before keratin treatments anyway (it's just better for your hair). If you want it to last though, this is a must.

The closest to a life-changing hair product as I have ever found, and I have tried too many to count, wasted hundreds, probably thousands, of dollars. I saw something about a keratin treatment on pinterest and looked this up on amazon. Checked out reviews, figured even if it didnt work, which I kind of expected, it was at least a minor investment, and I wouldnt have to waste any more time wondering if this one did work.... It worked soooooo well! I am caucasian with thick, wavy, not smooth, frizzy, unmanagable, hard to dry, hard to style hair. Air drying leaves me with frizz, my waves are frizzy and irregular, I have tried every product to enhance waves/reduce frizz, all attempts leave me looking like I just escaped from an institution. There is no just blow drying to style it, I cannot hold enough tension with a brush to smooth it, blow drying dries my hair, but it looks like a straw broom. So after blow drying, I have to heat style to smooth, with either a flat iron, curling iron, or instyler (highly recommend the instyler, by the way).
So I went through the process of applying and ironing repeatedly. I found the initial application of the product to have the worst of the fumes, rather than the ironing portion. Waited three miserable days before washing, reironing my hair each day as kinks develop in my hair overnight. I say the days were miserable because the solution leaves a waxy coating on the hair. My hair felt dirty. Friends kindly said it did look fine, however. It was at least passable in public. Finally, the happy moment of being able to wash it out... And my hair was glossy! I could air dry it! My wave pattern is still....not good, but I could go out in public with NO heat styling at all. I could just blow dry it, and not have to heat style with anything else. This is major for me. So much less time consuming. It also dries faster. For the first couple days I almost felt it was too glossy (as if that is possible). The initial glossiness toned down to normal and infinitely more manageable, normal texture. Despite the excessive passes with a flat iron, I have not found this product to actually straighten my waves, which are intact in their original wave pattern, oh well. I dont know if this is just due to my hairs thickness. Other people report straightening. For me it seems to fill in the porosity of the hair structure, making it smoother, shinier, easier to dry, faster to style, cutting so much time from my routine and making things like swimming in public and getting my hair wet something I can actually do! And not feel horrified.
This is the set I initially bought, there was enough of the keratin treatment for only one treatment with a little left over. After this I bought a bulk size, with enough for probably several years of treatments for about $100. I have repeated treatments two more times so far, and will probably keep using this stuff forever. There is a slow washing away of the keratin, and after about 3 months I am ready to go through the process again. I did try not waiting the three days once, waiting instead just one day to wash it out, but I do think the effectiveness was lessened. I have plenty of clarifying shampoo from the original kit, but I will use dishsoap when I run out. It seems the more porous, damaged, and roughed up your hair is, the better the keratin is able to bond to it. I have never used the shampoo/conditioner from this kit, but I definitely use sulfate free shampoo to slow the washing off of the keratin.
I will be doing another treatment this monday, and will stay home as much as possible during the three day wait till shampoo time. I get excited just thinking about the fresh shine and smoothness!
I wont go into the questionable health issues regarding the treatment. But I would as with all things recommend educating yourself before making a decision for yourself in that regard.
I hope my somewhat lengthy review helps someone! I appreciated the reviews left by everyone else when making the decision to purchase this!

I'll start with saying this product is absolutely amazing! I usually get my hair chemically straightened in a salon (the Japanese straightening not a Brazilian blowout- I think those are horrible for your hair-it just dried mine out & created a frizzy disaster). This service generally costs me $1000+ last time being about $1300. My hair is VERY long (37in), about half way down my bum and EXTREMELY thick, wavy with some ringlets & depending on it's mood, frizzy. With that being said- my hair is also very healthy and I try to take good care of it; doing masks once a week, deep conditioning it every time I wash (you can do this by just leaving your regular conditioner in for at least 10-15min). I regularly do keratin treatments & use Pureology shampoo & conditioner along with their other products & mix in Olaplex hair perfect No.3 once-twice a week. Having a love/hate relationship with this current length, taming it was a necessity making it at least manageable. If you've ever had your hair chemically straightened you know they price by length and last time I went my hair was about half way down my back so with it being this long I dreaded to think of how much they'd charge now. I began the unlikely search for an alternative to the salon with my hopes set at something that would possibly give me a slightly similar result or at least calm it down. Upon finding this product I saw other reviews that looked promising even though none of the hair types in the photos posted matched my wild locks, still, I decided to take a chance. So stoked I did. It beyond exceeded my expectations. Today was the first day I washed the product out of my hair after nearly four days instead of just the suggested three and my hair dried exactly as straight as it would have from an overpriced treatment (natural dry as well no blow dryer etc). The only thing the instructions don't have, is, each time I got mine done at the salon, the dresser would do a painstakingly longgg perfect straighten; doing hair strips that were about the width of a nickel. It's extremely important to have your hair this finely straightened because that's the "standard" you're setting for the product (I know that's not very technical but it's gets the point across lol). My hair feels amazing- it didn't dry it out, didn't cause any to fall out (which was a huge concern of mine) in short it did absolutely no damage just worked wonders. For perspective on the amount of product, you know how long my hair is, (bare with me here) I don't have dainty hands by any means I can almost palm a basketball lol and it takes two large palm fulls of shampoo and conditioner each time I wash my hair. The bottles in this product are a good size, but I was still skeptical if I should have gotten two but one box worked just fine and there was JUST enough of the keratin straightening product to have my hair perfectly saturated. So to those with shorter hair you'll really be getting your dollars worth gettin two treatments (maybe more) out of this. Now let's see how long it lasts, either way I'm happy. I will absolutely be using this method from here on out.

-Follow up: it's now been nearly two months since I used this product; my hair has a little wave back to it but for the most part is still very straight and silky smooth. Happy customer. Absolutely recommend. Also to those who are have skin irritation etc... like with anything you use on your skin- check the ingredients label and for the love of god do a small test patch on your skin!

Okay... I was very skeptical. VERY. I have had Keratin treatments at the salon before. First time I paid $350, second time $250 and the past two times $150. Couple that with a tip and you can round it up another $50. And my stylist WORKS for that money - this treatment takes about 3 hours in a salon (my hair is to my mid back) and I get why it is so expensive. Well...for $39, I didn't expect much from this product. I will admit that it took me ALONE a full 4.5 hours to accomplish what my stylist did in 3, BUT THE RESULTS WERE MAGNIFICENT! My hair is typically poodle curly on a hot humid Florida day, no matter what I do to try to tame it. Most seasons I just let it do it's thing... oh well.... it is what it is.... Well, those days are GONE! After I painstakingly followed the directions, watched a few YouTube videos, I took a deep breath and dug in and just started the process. Some of the things you WILL NEED: a rat tail comb, an application brush, a shallow bowl for the product and a plastic drape for your shoulders. Be warned: there IS a very strong smell from the formaldehyde and you will either need to have several fans blowing the smell away from you or you need to do it outdoors and hope for a strong breeze. You don't want the product to actually touch your scalp - it will burn (I know this from experience) and you will have a scab when its all said and done. The end result (wash hair, dry hair, put in treatment, wait 20 minutes, dry hair, flat iron hair, wait 3 days, wash hair) was nothing but phenomenal. My hair is smooth and sleek, the kinky curls are gone! My hair dries smooth and needs just a little touch up with a flat iron or large barrel curling iron. In fact, 1 month after I did the treatment, I confessed to my stylist what I had done - she was in amazement and made me promise NOT to share this information under penalty of murder! She had her other stylists come over and check my hair for damage - and there was none! I will say that if you color your hair, my stylist recommends that you do the treatment 1 week AFTER you have had your hair colored. The treatment can lighten some color, but it also seals color in so it is less likely to fade. I did my treatment in early June and I just ordered another bottle of the treatment - even though you will have enough of the clarifying shampoo left from this set, you will run out of the non-sulfate shampoo and conditioner. It is only a few dollars more for this complete set, so it is just worth it to get whole set when you reorder.

One last thing - I was freaked out before I started because I thought I ordered the wrong strength. I called the seller (did not have to email and wait forever for a reply), left a message and he texted confirmation of the call and called me back within the hour and answered all of my questions - so I can also recommend this seller as well.