clean streak minis
Limited-edition 3-step mini set cleans, protects + refreshes all hair types.
This mini routine gently cleanses, protects hair from damage, and keeps your hair feeling fresh for up to 3 days*.
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.
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.
Will the K18 conditioner weigh hair down?
No, the K18 conditioner will not weigh hair down. This highly concentrated, lightweight gel formula softens, smooths, and detangles without film-forming silicones or waxes that can build up over time.
Will AirWash™ cause buildup or white cast?
No, AirWash™ will not leave buildup or white cast behind. It’s formulated with translucent microbeads to absorb oil without leaving starchy buildup or a visible white cast behind*.
If AirWash™ applies damp, will it mess with my style?
No, it will not disturb your style. In a consumer test, 93% agreed the product did not revert their hairstyle*.
*k18hair.com/disclaimers
Refresh all hair types + textures—without white cast.
1. Shake for at least 5 seconds before spraying.
2. Hold the bottle 4-6 inches away from scalp for even distribution on most hair types, closer to 4 inches for coily textures.
3. Section hair and apply just 1 spray per section. Less is more. Add only as needed.
Massage in and brush or style as usual.
4. Put the cap back on when not in use to keep the nozzle protected.
PRO tips:
Non-aerosol format may feel slightly damp but will not disturb your style.
If hair feels gritty or powdery, you may have applied too much product. Brush hair to distribute the product, or reset hair with an in-shower shampoo.
If the bottle's nozzle is clogged, it could be from air exposure or insufficient shaking. Give your bottle a good shake and try again!
See how K18 unlocks our community's expression




