K18 Peptide Prep Shampoo 250 ml / 8.5 fl oz
Weightless oil that strengthens, repairs damage + reduces frizz
This biotech-engineered weightless oil works on all hair types to strengthen, repair damage, reduce frizz at two levels of the hair fiber, and improve shine.
- clinically proven damage repair
- 24-HR frizz control
- 104% more shine
- 78% reduction in split ends
- 450°F (232°C) heat protection
Apply to damp, towel-dried hair before styling, or on dry hair as a finisher. Highly concentrated formula. Start with 1-3 drops and build as needed.
Use on damp hair for: strengthening benefits and to reduce frizz during air-dry or styling
| Key Benefits | Effect |
|---|---|
| Damage repair | Clinically proven |
| Frizz control | 24-hour protection |
| Shine improvement | 104% more shine |
| Split end reduction | 78% reduction |
| Heat protection | Up to 450°F (232°C) |
FAQ
Can I use K18 Peptide Prep Shampoo on dry hair?
Yes, it can be used on dry hair as a finisher to enhance shine and reduce frizz.
Does this shampoo provide heat protection for styling tools?
Yes, it offers 450°F (232°C) heat protection, making it suitable for use before heat styling.
How many drops should I use per application?
Start with 1-3 drops and adjust based on hair type and desired effect.

Christian Paterson –
I’ve used this shampoo for a few weeks now and noticed a significant reduction in frizz, especially after washing. My hair feels stronger and looks shinier. I apply it to damp hair before styling and it works well without making my hair feel greasy.
Tim White –
The formula is lightweight and absorbs quickly. I use it before blow-drying and my hair stays smooth throughout the day. The 24-hour frizz control is impressive, and I’ve seen fewer split ends since using it regularly.
Peter Watson –
It delivers on the promise of shine and damage repair. The heat protection is a bonus for someone who uses flat irons. I still need to adjust the amount of drops depending on hair thickness.
Cameron Davies –
My curly hair has become more defined and less frizzy. I apply it after towel drying and it helps maintain shape. The product is effective and doesn’t weigh down the hair.
Blake Cameron –
Great for daily use. I noticed a visible improvement in hair strength after a few days. The shine is noticeable, especially in low light. A little goes a long way.