K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask is a leave-in treatment mask that works on the molecular level to reverse hair damage in just 4 minutes. The products star ingredient is K18Peptide, which mimics the structure of the hairs natural keratin to boost moisture and promote thicker hair. The product is vegan, cruelty-free, and comes in recyclable packaging.
Positive aspects of the K18 Hair Mask include:
- The product has received high ratings from customers.
- The K18Peptide technology has been clinically proven to repair damage from bleach, color, chemical services, and heat.
- The product has been praised for its ability to repair damage, add softness and shine to hair, and promote thicker hair.
- The product is formulated for all hair types, working particularly well on medium and thick hair.
- The product doubles as a leave-in conditioner, hair gel, and cream all in one.
Negative aspects of the K18 Hair Mask include:
- The product is on the pricey side, with a full-size bottle costing $75.
- Because the product applies to unconditioned wet hair, extra care and attention are needed when brushing hair.
The K18 Hair Mask contains fewer than 15 ingredients, which are a blend of natural and synthetic materials. The product is silicone-free, clean, and cruelty-free.