
why you'll love K18
our story
Our story began with a decade of complex research into thebioscience of hair, resulting in our patented molecular repairpeptide. Through this research and the application of syntheticbiology, we are able to do more with less, simplifyingformulations and routines to support hair health and expressionat home and in the salon.
shield your healthiest hair from daily damage
backed by K18-patented biotech
K18PEPTIDETM is clinically proven to reversedamage in 4
minutes* from:
bleach + color
chemical services
heat
Experience deeper, lasting repair at the molecularlevel-where all hair is the same.
how to use
Safe to use every time you wash.
1. Massage into hair, focusing on scalp.
2. Thoroughly rinse.
3. Repeat as needed.
For best results, follow with DAMAGE SHIELD protective conditioner.
"...My hair dresser introduced me to this and Ihave been using it ever since! The visibledifference this made with my hair...wasabsolutely breathtaking. Will not go back toanother shampoo ever!"- Hannah K.
your protective shampooquestions, answered
Is the formula of the DAMAGE SHIELD pH protective shampoo different from the PEPTIDE PREP™ pH maintenance shampoo?
Is the formula of the DAMAGE SHIELD pH protective shampoo different from the PEPTIDE PREP™ pH maintenance shampoo?
No, the formula of the DAMAGE SHIELD pH protective shampoo is not different from the PEPTIDE PREP™ pH maintenance shampoo. Just the name has changed, the formulation you know and love is the same.
What makes the DAMAGE SHIELD pH protective shampoo special?
What makes the DAMAGE SHIELD pH protective shampoo special?
The DAMAGE SHIELD pH protective shampoo delivers healthier hair and scalp after just one wash. Its optimized pH helps maintain the hair cuticle, preventing excess water from entering the hair, which can cause damage, dullness, frizz, and tangling. With this shampoo, your color is maintained, hair feels strong, healthy, looks smooth with less frizz, and is easier to style with less tangles. This formula moisturizes hair without weighing it down, and preserves the scalp microbiome for a healthier-feeling scalp and a gentler cleanse. Coupled with the DAMAGE SHIELD protective conditioner, these formulas shield your healthiest hair from daily damage.
When do I use the DAMAGE SHIELD pH protective shampoo?
When do I use the DAMAGE SHIELD pH protective shampoo?
This pH-balanced formula is gentle enough to use every time you cleanse, delivering healthier hair and scalp after just one wash.
Why do I need both shampoos?
Why do I need both shampoos?
You need both shampoos to deliver the most effective clean while maintaining your hair + scalp health. Detox shampoo is engineered for less frequent heavy-duty washing, and DAMAGE SHIELD pH protective shampoo (previously pH maintenance shampoo) is engineered for frequent washing.