Leave-In Molecular Repair Hair Mask, Patented, Lasting Repair For Dry, Frizzy, Damaged Hair, Reverse Damage In 4 Minutes From Bleach, Color, Chemical Services + Heat

My stylist recommended this to me and I love it. I wish there was a bigger size though, especially since I have so much thick hair and probably go through it much quicker. I noticed a difference after the first time I used it-especially with my hair feeling softer. But it wasn’t really as noticeable until the third time. My hair is pretty damaged and I’m using it a couple time a week and it seems to really be reviving my locks. It’s not greasy or heavy and smells pleasant and I truly feel like it is a true product that actually does what it says and you can feel the difference in your hair.

Great Product!! I highly recommend. Repairs your hair in one treatment. It's a little spendy, but worth it.

So far so good! This was recommended to me to help prevent my hair breakage, which has gotten more brittle as I’ve aged. I’ve used as directed once a week and I’ve already had better hair health and less breakage (while implementing other changes to my routine). It’s easy to apply due to its nice texture. Directions are clear and easy to follow. The scent is nice and it doesn’t leave any greasy shine appearance after applying. The volume of the bottle is very small for the cost but very worth it IMO. I am so thrilled to have so much less breakage - I will absolutely be buying more.

This is the best for damaged hair. Just a pea size for medium length. My hairstylist introduced me to it. Its a luttle high priced but SO worth it! Smoothes damaged. Frizzy naturally curly hair. Makes using a flat iron to straighten more effective. Shiny hair protected and restored over time.

This hair mask works really well and left my hair feeling noticeably softer, smoother, and more hydrated after just one use. It helped tame frizz and made my hair look healthier overall, so the quality is definitely there. My only complaint is the amount of product for the price — the container is smaller than expected and it goes pretty quickly, especially if you have longer or thicker hair. That said, it does deliver great results, so I just wish you got a bit more for what you pay.

This product is just ok for me. I don’t notice it doing a whole lot for me. I stopped using all other hair products besides a heat protectant so I could truly get a feel for this product. My hair doesn’t feel smooth and soft like it claims. It’s still easily knotted and my hair doesn’t look any different. I went back to using my hair oil that is a leave in conditioner, makes it shine and a heat protectant and it’s $13. My hair with that feels amazing. For the price I really thought it would be a magical product and maybe I set my expectations too high. It does not weigh my hair down or make it greasy so that’s a win but that’s about all I like about it.

I’m over 55 and have spent decades trying everything — from $9 to $144 per product — hoping for softer, healthier hair. I have 3a curls hidden under years of color, heat damage, and dryness. My hair would break and frizz so badly it looked like I had layers (I don’t). K18 is the first and only product that actually delivered on its promise to repair — not just coat — my hair. I was fully prepared to return this if it did not make a difference. It did. This isn’t a conditioner or mask. K18 uses a patented technology that works from the inside out. I used a clarifying shampoo, applied 6 pumps (very small pumps from the "try it" bottle!), finger-raked it through damp hair, waited 4 minutes, and then combed through. No rinsing, no other products. I let my hair air-dry, and it already felt softer and smoother with significantly less frizz. No fragrance -makes me happy. Important note: You do not need to rub this aggressively between your palms to "activate" it — that’s a common myth. Just rub your palms lightly so you can apply it evenly and let the science do the work. It works on the keratin molecules to repair your hair from the inside out. Friction is not going to make the molecules smaller. Don't know why people start these rumors. The next morning, I used my straightener on medium heat and was stunned. Instead of the usual dry straw, my hair was sleek, shiny, and bouncy. Even the ends curled beautifully — something I’ve never seen on my hair before. After four treatments, my hair now feels different, although the greatest results came after the very first use. My hair is softer, smoother, more manageable, with less frizz and more shine. Even in Florida’s 90°+ heat and humidity, it holds up — and I’m not using anything else but K18. A friend even asked to try it after seeing my results. It’s expensive, but absolutely worth it. I’ve already bought the larger bottle. I’m sticking with K18 — this changed everything for me. And to address the expense, the 50mL pump provides 50 pumps. That's 25 applications for me. My average thickness, long hair uses 2 full regular pumps. After the first 4 applications, you move to every 4 washes. That means after the first four treatments, I have 21 treatments more still in the pump bottle. For me, with super dry hair, that means it will last another 18-21 weeks since I only wash once a week, and an occasional "extra". I am going to guess I have taken at least $100 of products that did not work for me to the women's shelter over that time, meaning the waste was as much as this effective product that takes no time to use, packs easily in a suitcase, doesn't stink and IT WORKS! If you have super straight, silky hair, like Asian hair, or other non-porous hair, I do not think you are going to get the same results. You probably already have the kind of hair those of us with porous, damaged hair are looking for. Ask ChatGPT

My hairdresser recommended that I use this to help me reach my hair dream goals of platinum bangs with a perm. I just started using it, but so far I am liking the results. My bleached hair feels much healthier, softer and shines again. After using this my hair feels healthy throughout the whole day, so it's lasting. The pump makes it easy to use, I don't have to do any squeezing to get the product out. And the pump helps me only get the amount I need so I don't get too much at once. While the bleach did take most of my curl away from my perm, I have noticed that in just two days of use my curls have returned, adding back the volume and thickness I desire. If it can do that, I have high hopes it will help me achieve that platinum blonde I want without frying my hair off.