Our beauty writer was introduced to the K18 Molecular Repair Hair Mask in 2022 and has been using it religiously ever since. Read on for her honest, unbiased review, plus before and after photos.

At the beginning of your K18 journey, it’s suggested that you use consecutively for four to six washes. Then, after you ... water from my hair before applying a hair mask (it helps product ...

In most cases, it’s best to leave it on for about ten to 15 minutes, and rinse with cold water to enhance shine — but some masks (like K18’s ... detangled my hair was after just one treatment.