K18 Molecular Repair Hair Oil
Chrissy’s Tip: “This oil is one of my go-to’s for extensions. I use it on the ends—especially after styling—to smooth everything out and add shine without weighing the hair down. A little goes a long way, and it makes the hair feel really healthy.”
The K18 Molecular Repair Hair Oil is a biotech-engineered, weightless oil that works on all hair types to help strengthen and repair damage from the inside out. It targets frizz at multiple levels of the hair fiber while boosting shine and improving overall hair health.
Clinically proven to deliver:
- 24-hour frizz control
- 104% more shine
- 78% reduction in split ends
- Heat protection up to 450°F (232°C)
How to Use
Apply 1 drop to damp or dry hair, focusing on the ends. Use after styling or as a leave-in treatment for added shine and frizz control.
| Key Benefits | Performance |
|---|---|
| Frizz control | 24-hour protection |
| Shine enhancement | 104% more shine |
| Split end reduction | 78% reduction |
| Heat protection | Up to 450°F (232°C) |
FAQ
Can this oil be used on colored hair?
Yes, the K18 Molecular Repair Hair Oil is safe for colored hair and helps maintain color vibrancy while reducing frizz and protecting against heat damage.
How often should I apply this oil?
Apply once per week as a leave-in treatment or after styling, especially to the ends of your hair for best results.
Is this oil suitable for curly or coarse hair?
Yes, it is formulated to work on all hair types, including curly and coarse hair, providing smoothness and reducing frizz without weighing the hair down.

Julian Wilkins –
I’ve used this oil on my extensions for a month now and noticed a huge difference in the ends. It smooths out frizz and gives a natural shine without making the hair look oily. I apply it once a week after styling and it feels light and non-greasy.
Charles Fisher –
My curly hair used to be frizzy and dry, but after using this oil regularly, it feels stronger and more manageable. The shine is noticeable, and split ends have reduced significantly.
Richard Dickens –
It works well for heat styling. I use it before blow-drying and it helps protect against heat while keeping my hair smooth. A little goes a long way, and it doesn’t leave a greasy residue.
Zoe Rutherford –
I use it on my hair extensions and it’s a game-changer. The frizz control is excellent, and the shine makes my hair look healthier. No heaviness, just clean, smooth results.
Benjamin Gray –
Great for daily use. I apply it to the ends after washing and it keeps my hair looking polished. It doesn’t make my hair feel sticky, which is a big plus.