Love this product. My hair was really damaged and I dont trim it enough. This stuff works as the price suggests it does. I received a free sample with my full size purchase. I followed directions and it did take 3 uses to see full effect, but did notice difference after first use. Thank you!

Was skeptical about no conditioner, just this after 4 minutes? Wow! Soft manageable hair that bounced after drying!

Makes my hair so soft and easy to untangle!

Revives my hair every time after the abuse of highlights. Thank you K18!!

Saved my hair after dying it blonde multiple times! Great product!

My hair looks and feels like new!

One pump weekly has absolutely saved my ends

I�??m honestly so impressed with the Mini Leave-In Molecular Repair Hair Mask (15 mL). I�??m usually very hesitant to try new hair products because my hair is very fine and thinning, and so many things end up weighing it down or making it look greasy. But this one was a pleasant surprise.

Amazing! I ordered a whole set of olaplex but sent it all back bc k18 was sooo much better!!! I now absolutely love k18 so i decided to order a lot of it instead!!! Thank you sooooo much for making something so wonderful!!! :)

This works great on bleached and colored hair! Follow directions.

I started using K18 about 3 weeks ago and I am super pleased with the results. With highlights, monthly root color and naturally curly hair it has become nearly impossible to control my frizzy hair. But I am astonished at the results. My hair doesn�??t look like dry straw anymore. I am willing to pay the right price for a product that will make my hair look healthier and beautiful. I definitely recommend K18.

I have fine hair that is highlighted on a regular basis. I recently fried the ends of my hair when my straightener was accidentally turned to the maximum heat setting. My hair smelled like bacon, not kidding! A friend who works at the beauty supply house recommended k18. Wow! After one application=good result. After two applications=good result. After three applications my hair was back to healthy status. This stuff is amazing!

My hair is easy to tangle, this has made a big difference.

I was very skeptical about this product. I emailed customer service inquiring about a recommendation for a product that worked on color bleached - damaged hair. The Leave-in-Molecular Repair mask did the trick.

I recently bleached my hair and have toned it a few times. The first picture is before, and then after one use of K18. I used a clarifying shampoo and then applied the K18 on damp hair. I was nervous about having to brush it after (clarifying without conditioner) but it combed through so easily.

Theere is basically nothing in the bottle. Very displeased with the pea size amount in the bottle. Not enough product for the money.

Iv been dying my hair for 15+ years and have always had issues with damage. Was recommend by my hairstylist after use in an appointment and followed up with the mask for the next 4 washes. My hair has never felt better and Iv had significantly less split ends

This seems to be helping my color damaged hair. I�??ve purchased more!

I have never been more impressed with a leave in mask before. Usually when I only shampoo it leaves my hair dull, lifeless, and feels like straw. I used this mask according to the instructions.. and I was not disappointed! My hair felt smooth and hydrated with zero conditioner in. This mask is the GOAT of all masks. I can�??t recommend it enough. It is expensive, but it�??s worth the price point!

I am honestly amazed by the results I�??ve had with K18. My hair had been dry, brittle, and breaking for over a year, and nothing I tried seemed to make a real difference. After using K18 for about three weeks, my hair has completely transformed.

I love the smell of this I used as instructed and have been using for one month

This product saved my hair from breaking. My hair stylist recommended it because I have been getting highlights for over 20 years and my hair is begging me to stop lol but I refuse so she told me to use it to prevent further breakage and it work wonders!! Plus it smells amazing

I have noticed my hair is starting to bond and actually grow. I am a firm believer in this product. I will continue to use it.

I saw a difference from the first wash and now that I am four washes in my hair has a lot of its bounce. Back in the curls are holding much much better. Excited to continue using K28!

Left my hair feeling like I had just left the salon. It was soft and manageable!

I have fine hair that tends to break as well as get frizzy . K18 leave in repair has made me hair look beautiful again.

My hair felt instantly fuller and thicker !

I am delighted to share how transformative this shampoo and conditioner has been for my hair. It's a bit embarrassing to admit, but just a few weeks ago, my hair was in such a dire state after excessive bleaching that I experienced hair loss on the top and sides of my head. The damage was severe, and my remaining hair felt gummy, fragile, and fried at the ends. Initially, my plan was to hide beneath a hat until my hair regrew, but thanks to incorporating this hair care line into my routine, my hair's condition has drastically improved. The minimal amount of times I've used the products, along with the k18 repair mask, have left me at a loss for words to express the level of astonishment and satisfaction I feel with the results. I can confidently say that the difference this product line has made is beyond remarkable and shocking. I regret not taking before and after photographs as the transformation is truly unbelievable. The other day, when I was out and about, I received compliments on the shine, beauty, and overall health of my hair. Until now, I had always been skeptical of such glowing reviews, wondering if they were too good to be true. However, I can assure you that the difference these products have made on my hair is truly night and day. I no longer have to rely on hats to hide my damaged locks; instead, I can confidently showcase the wonderful results achieved through this remarkable hair care line.

This oil and leave in mask are the Best !!!

I was skeptical but its really worth the hype!

K-18 Leave-In Molecular Repair Hair Mask makes my permed hair silky and shiny, and refreshes the curl pattern every time I use it. My hair is quite fine, and the K-18 does not weigh it down or make it feel greasy or stiff like some products do. About 72 hours after my perm, I shampoo my hair and use the leave-in hair mask, then use it the next four times I shampoo my hair. After that, I use it whenever my curls start to look dry and frizzy. It has made all the difference for my permed, fine, gray hair.