Leave-On Hair Mask K18 Hair Biomimetic Hairscience Leave-in Molecular Repair Mask Mini Size

I tried a 5 ml sample and then purchased the full version of 150 ml. This is the best hair product I have ever tried. It works wonders on my bleached, porous, and brittle hair.

I completely did not understand this product at all!(((

I made the mistake of buying the large 150 ml size without thinking because I had heard many good reviews about this product. It was said to be the only one that could actually transform hair from straw-like to somewhat "alive" by at least 5%. Turns out, it was a waste of money. I applied it correctly, as the manufacturer recommended. After shampooing, I lather it up in my hands and apply it, leaving it in without rinsing. Then I start styling. It's incredibly difficult to comb through my hair, it's just awful. There's no softness, elasticity, or shine. In short, it's a complete disappointment. I've already applied it 11 times, still hoping for a miracle. Nonetheless, I'm hopeful that there are positive changes happening in the structure of my hair.

After trying Olaplex, I thought nothing else would be able to surprise me. But this product is simply amazing! Achieving such an effect without using a mask or conditioner, especially with a leave-in treatment, feels like something out of a fantasy. My hair is smooth, soft, and free from any frizz. I applied it all over, almost up to the roots, and it did reduce the volume, so next time I'll focus more on the length. The price is definitely impressive, but the product goes a long way, so it's quite economical. This is a wonderful invention!

I decided to try this product at my hairdresser's recommendation, and it turned out to be really cool! My hair is colored, and I only needed 5 ml for a month, even with a bob haircut. I rub it in my palms, although it doesn't lather up. From now on, I will order it from here!

Great mask, I really liked it.

As a hairstylist myself, I have tried many leave-in hair treatments for restoration. I must say, this one takes the top spot. I have fine hair that has been lightened multiple times. After the first application, my hair stopped tangling and gained an extra shine. The mask has a cumulative effect. For the first three times, I applied 1 ml of the mask to my hair after each wash, and with each application, my hair became denser. Well, in my opinion, this mask is amazing, especially when immediate reconstruction is needed. The instructions state that it should be applied once every four hair washes. You decide if it's worth the money, but I have no regrets!