Amazonliss Keratin Hair Treatment - Professional Hair Straightening & Smoothing Kit with Keratin for Frizz Control & Shine (2.03 oz) - Perfect for Salon-Quality Results at Home, Special Occasions & Daily Hair Care

EDITED WITH UPDATE, PLUS ADDED PHOTOS:Jan 11, 2023 - it took over 3 months for the super-flat-&-super-straight texture to settle back to anything resembling my natural curly-wavy hair texture. Let's just say my face is 'fluffy' so the volume from my natural hair texture was more proportionate a style for my face. AFTER 3 OR 4 MONTHS I ended up cutting off nearly all of my hair, th sedimentary had been keratin straightened - not because I hated it, but because I became completely obsessed with the modern mullet!Re: washing - washing did not significantly alter my hair, it remained very straight and very shiny through many washes over 3 (maybe 4?) MONTHS. Fog was not an issue at all, my hair stayed very straight in all of those situations when it normally would have reverted back to unruly curls (i.e. outdoor fog, or steam while cooking, or sweat from exercise). So I'll say the product and treatment are very long lasting.The ends did feel a little dry, like the keratin treatment closed off my hair from absorbing any of the deep conditioners I typically apply throughout the month. Beyond that, I don't have complaints about the product or how it changed my hair.-----------------March 4, 2021 - I've always been a DIY-er, and I have fine, 2b/2c curls, below-shoulder-length hair that tends to be quite frizzy when allowed to do its own thing -- especially when I travel to more-humid parts of the country. I've found if I blow-style my hair straight, with a large round brush, I can go a full week without needing to wash/ re-style -- but there's always the risk that if it's a muggy, foggy, or rainy day, I've got problems. I stumbled across this product, watched several videos & reviews, and decided to give it a go. I followed the directions to a T, and found the application techniques that Eliana Jalali showed in her video (uploaded here to the product) extremely helpful.The results are that my hair is VERY smooth, and VERY straight... maybe too straight? What I mean by that is before doing this treatment, when I just blow-style straight, it still has plenty of body; whereas right now it's quite flat, but shiny straight. That's why I rated 4/5 stars. As of today, I haven't washed & styled since doing the process 5 days ago, so I'll update my review once I've done a couple washes & see how it fares.A few notes/ observations:1) I did this treatment 2 days after coloring, and it definitely lightened the color, probably a full shade or slightly more. My thought process for doing things in that order was that I was concerned that if I did the keratin treatment first, and colored afterwards, the color might not "take" as well. I plan to research this more. But either way, it would be an easy adjustment to color slightly darker than intended, then do the keratin.2) As mentioned, my hair is slightly-below-shoulder length, but I have a less-than-average amount of hair, and what I have is moderately fine. I will easily get 2 uses out of this first package -- possibly even 3 if I find a good clarifying shampoo (I used a lot prior to applying the keratin). But if you have thick hair, or a lot of hair, or very long hair, you'll probably only get 1 or 2 uses.3) Do not underestimate the fumes, while they're not horrid, they're definitely fairly irritating. I really needed my wall-mounted/ large mirror in my bathroom to feel like I could see all angles of my head -- utilizing the two adjacent medicine cabinet doors, I can see the back fully, leaving my hands free for the process. But my bathroom is in the center of my house, with no nearby windows, and the fan is only in the shower area. That became a bit of a problem, as my eyes began to water and my nose began to run. I finally pulled out a small fan & set it on the counter, on low to blow away the fumes, but if I continue using this, I'll need to figure out something near a window I can open.4) I opted not to use gloves this first time around, most (all?) of the videos I watched, the demonstrators didn't. And I'm guessing I'm like a lot of people, when I straight iron my hair, it's a two-handed process... meaning I hold the iron in my right hand, and handle my hair with my left. Which means my left palm & fingers got a thorough coating of the product, AND, in handling my heated hair now & then, the keratin actually bonded to my left palm & fingers, whoops! That took a solid 5 days to wear off, even with washing my hands constantly during this pandemic. It was totally invisible, and really nothing more than an annoying feeling, but I mention it so you can make an informed choice on whether you want to wear the gloves.