• K18 DAMAGE SHIELD pH Protective Shampoo bottle on blue background, promoting healthy and color-safe hair care.
  • K18 DAMAGE SHIELD pH Protective Shampoo bottle with benefits listed, optimized for hair health and color protection.
  • Graphic showing hair cuticle differences with and without pH shampoo, highlighting frizz, tangling, and damage prevention.
  • Cleanse image highlighting K18PEPTIDE™ for everyday washing, showing benefits for healthier, smoother hair.
  • K18 DAMAGE SHIELD pH protective shampoo bottle with blue gel, highlighting new name and same formula.
  • K18 healthy hair care products featuring DAMAGE SHIELD shampoo and PEPTIDE PREP for daily and treatment routines.
1 6

K18

DAMAGE SHIELD ph Protective Shampoo

DAMAGE SHIELD ph Protective Shampoo

$44.10 CAD
$49.00 CAD $44.10 CAD
Sale Sold out

In stock

Size
Description

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.

  • gentle daily cleaning
  • microbiome-friendly
  • pH-optimized
More to know
  • Safe but powerful cleansing: Plant-derived surfactants deliver safe but effective high-power cleansing to break down and remove dirt + oil
  • Designed for damaged hair: pH-optimized formula helps prevent excess swelling of the hair cuticle during washing - which helps maintain color, improve hair health and shine, and reduce frizz
  • Gentle enough to use every time you cleanse: Gentle on hair AND scalp - pH-optimized formula mimics hair’s natural pH, to reduce cuticle swelling and maintain hair health, and preserve the scalp microbiome
Key benefits

Less is more formulation delivers a superior clean without compromise:

  • Optimized pH cleanses hair and scalp without over-drying
  • Certified microbiome-friendly formula removes dirt and oil without disrupting the scalp’s natural protective barrier
  • K18PEPTIDE™ helps reduce protein loss to keep hair feeling healthy and strong
How to use
  1. Safe to use every time you wash.
  2. Massage into hair, focusing on scalp.
  3. Thoroughly rinse.
  4. Repeat as needed.

For best results, follow with DAMAGE SHIELD protective conditioner.

Ingredients

Water (Aqua) (Eau), Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Sodium Methyl 2-Sulfolaurate, Sodium Lauryl Sulfoacetate, sh-Oligopeptide-78, Panthenol, Glycerin, Sodium Phytate, Guar Hydroxypropyltrimonium Chloride, Disodium 2-Sulfolaurate, Caprylyl Glycol, Caprylhydroxamic Acid, Benzoic Acid, Citric Acid, Sodium Hydroxide, Sodium Chloride, Fragrance (Parfum), Limonene.

Disclaimer

Certified microbiome-friendly by MyMicrobiome Standard

91% said hair looks healthier¹
91% said hair feels smoother¹
91% said hair does not feel weighed down¹
¹Results observed in a consumer test of 35 subjects after 21 days of consistent use of the PEPTIDE PREP™ pH maintenance shampoo

Protect your healthiest hair¹¹We define “your healthiest hair” as hair that exhibits a combination of strength, elasticity, manageability, softness, smoothness, vibrancy, and shine. It is hair that you feel confident in, and which you repair regularly with K18 molecular repair products.

View full details