K18 Damage Shield pH Protective Shampoo
A color-safe, pH-optimized shampoo with the patented K18PEPTIDE™ to effectively cleanse while maintaining hair health and protecting hair from damage. pH-optimized formula helps reduce excess swelling of the hair cuticle during washing to help prevent frizz, preserve color, and enhance shine. Scalp microbiome-friendly and gentle enough to use every time you cleanse.
How to use:
- Safe to use every time you wash.
- Massage into hair, focusing on scalp.
- Thoroughly rinse.
- Repeat as needed.
For best results, follow with DAMAGE SHIELD protective conditioner.
Key benefits
Less is more formulation delivers a superior clean without compromise:
| Benefit | Description |
|---|---|
| Color-safe | Preserves hair color during washing |
| Frizz prevention | Reduces cuticle swelling to minimize frizz |
| Enhanced shine | Improves hair appearance with healthy cuticle alignment |
| Scalp friendly | Supports scalp microbiome balance |
FAQ
Can this shampoo be used daily?
Yes, the shampoo is gentle and safe to use every time you wash your hair.
Does it help with color retention?
Yes, the pH-optimized formula helps preserve hair color by reducing cuticle swelling during washing.
Is it suitable for all hair types?
It is designed for all hair types and is especially beneficial for color-treated hair.

Edward Hart –
I’ve used this shampoo for two months now and notice my color stays vibrant without fading. My hair feels smoother and less frizzy after each wash. I always follow up with the protective conditioner, and it makes a real difference in how my hair looks and feels.
Deirdre Carr –
The shampoo cleanses well without stripping my hair. I appreciate that it’s gentle and doesn’t make my hair feel dry. My color has stayed true even after frequent washing, which is a big plus.
Nicholas Tucker –
I used to have frizzy ends, especially after washing. Since switching to this shampoo, my hair feels more manageable and has a natural shine. The pH balance seems to be working well for my color-treated strands.
Joan Hughes –
It’s mild and doesn’t leave my scalp feeling tight. I use it every other day and haven’t noticed any irritation. The shine improvement is noticeable after just a few uses.
Mary Graham –
This is the first shampoo that actually feels like it’s protecting my hair instead of just cleaning it. My hair feels healthier and more resilient after each wash. I recommend it for anyone with colored hair.