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DAMAGE SHIELD pH protective shampoo

Color-safe protective shampoo maintains hair health + strength
Rated 4.6 out of 5
Based on 270 reviews

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
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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.

pairs well with

DAMAGE SHIELD protective conditioner

Rated 4.6 out of 5
Based on 123 reviews
Nourishing conditioner shields hair from daily damage View DAMAGE SHIELD protective conditioner 8.5oz product

K18 molecular repair hair oil

Rated 4.7 out of 5
Based on 431 reviews
Weightless oil that strengthens, repairs damage + reduces frizz View Molecular Repair Hair Oil product

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.

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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?

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?

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?

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.

the DAMAGE SHIELD difference

DAMAGE SHIELD shampoo’s optimized pH reduces excess cuticle swelling during washing—preventing damage that causes dullness, frizz + tangling.

certified microbiome-friendly formula

Engineered with your hair’s optimal pH level in mind, this everyday cleanse keeps your scalp microbiome balanced for strong, smooth + healthy hair.
reviews
average rating 4.6 out of 5
Based on 270 reviews
  • 5 Stars
    223 Reviews
  • 4 Stars
    14 Reviews
  • 3 Stars
    12 Reviews
  • 2 Stars
    8 Reviews
  • 1 Star
    13 Reviews
88% of reviewers would recommend this product to a friend
Customer photos and videos
270 Reviews
Reviewed by Jessica B.
Verified Buyer
I recommend this product
Age
35 - 44
Hair Concern
  • Chemical damage
  • Heat damage
My Results
  • Visible Difference
  • Stronger Hair
  • Less Breakage
  • Smoother Hair
  • Soft Touchable Hair
Rated 5 out of 5
Review posted

Love

My hair has never looked healthier after using the damage shield shampoo. I have been highlighting it for years and this shampoo has made it look healthy, smooth and shiny.

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K18Hair

Thank you Jessica! We appreciate your 5 star review!

Reviewed by Jenn C.
Verified Buyer
I recommend this product
Age
35 - 44
Hair Concern
  • Color-care
  • Dryness
My Results
  • Stronger Hair
  • Smoother Hair
  • Soft Touchable Hair
Rated 5 out of 5
Review posted

Damage shield

Would like it even more if you offered refills to cut down on plastic.

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K18Hair

Thank you for your review! I will forward your feedback to our team.

Reviewed by Deborah
Rated 3 out of 5
Review posted

3 Stars

Not as great as expected. This is salon recommended but I can’t see how this is making any difference to my hair. Maybe it works internally on the hair root & shaft as I can’t see a difference to the texture of my hair but my stylist says my hair is very healthy. So

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K18Hair

Thank you for your review!

Reviewed by Eliana C.
Verified Buyer
I recommend this product
Age
25 - 34
Client Hair Concerns
  • Chemical Damage
  • Color Care
  • Dryness
  • Split Ends
  • Fragile/Brittle Hair
Client Hair Types
  • Fine/Thin
Client Results
  • Bouncy Hair
  • Stronger hair
  • Visible Difference
  • Less Breakage
  • Soft Touchable Hair
Rated 5 out of 5
Review posted

Phenomenal

My hair has never been this healthy and strong!! I used to use matrix but I’m never going back!

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K18Hair

Thank you for your review!

Reviewed by Charmane H.
Verified Buyer
I recommend this product
Age
55 - 64
Hair Concern
  • Chemical damage
Hair Type
  • Thick/Coarse
My Results
  • Cleaner, fresher hair
  • Visible Difference
Rated 5 out of 5
Review posted

Awesome!!!

It’s my first time using it, but I’m impressed.

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K18Hair

Thank you for your review!

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