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Damage Shield pH Protective Shampoo: new name, same formula
optimized pH is gentle on damaged hair, certified microbiome-friendly formula is gentle on scalp, formulated with K18PEPTIDE(TM) to maintain hair health, helps reduce frizz, and tangles + promotes shine, made for all hair types + protects color, vegan, cruelty-free + plastic net-zero
K18 healthy hair routines- treatment day routine: to repair damage daily routine: to protect against daily damage
new name same formula pH maintenance shampoo formula
cleanse for frequent everyday washing
protect against dullness, frizz + tangling

DAMAGE SHIELD pH protective shampoo

Color-safe protective shampoo maintains hair health + strength
Rated 4.6 out of 5
Based on 299 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
OR
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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

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

  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.

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 189 reviews
Nourishing conditioner shields hair from daily damage

K18 molecular repair hair oil

Rated 4.7 out of 5
Based on 507 reviews
Weightless oil that strengthens, repairs damage + reduces frizz

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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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.

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.

This pH-balanced formula is gentle enough to use every time you cleanse, delivering healthier hair and scalp after just one wash.

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.

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reviews

average rating 4.6 out of 5
Based on 299 reviews
  • 5 Stars
    250 Reviews
  • 4 Stars
    16 Reviews
  • 3 Stars
    12 Reviews
  • 2 Stars
    8 Reviews
  • 1 Star
    13 Reviews
89% of reviewers would recommend this product to a friend
299 Reviews
Reviewed by Katie H.
Verified Buyer
I recommend this product
Age
35 - 44
Client Hair Concerns
  • Color Care
  • Frizz
  • Fragile/Brittle Hair
  • Dryness
  • Split Ends
Client Hair Types
  • Fine/Thin
  • Medium Density
  • Thick/Coarse
  • Grey Hair
Client Results
  • Soft Touchable Hair
  • Cleaner, fresher hair
  • Oil absorbed
  • Less Frizz
Rated 5 out of 5
Review posted

Damage Shield shampoo

This is my staple shampoo to send home with my clients. We love that it's made with minimal ingredients and you still get a great lather. Provides a healthy scalp and hair!

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K18Hair

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Reviewed by Daniel C.
Verified Buyer
I recommend this product
Age
45 - 54
Hair Concern
  • Color-care
  • Frizz
  • Dryness
  • Extending time between washes
Hair Type
  • Thick/Coarse
  • Straight/Wavy
My Results
  • Bouncy Hair
  • Cleaner, fresher hair
Rated 5 out of 5
Review posted

Clean

My hair actually feels clean and lasts longer between washes.

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K18Hair

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Reviewed by Brooklyn
I recommend this product
Rated 4 out of 5
Review posted

4 Stars

I really like this product!

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K18Hair

Thank you for your review!

Reviewed by Lesa H.
Verified Buyer
I recommend this product
Age
45 - 54
Hair Concern
  • Fragile/brittle hair
  • Split-Ends
Hair Type
  • Fine/Thin
My Results
  • Visible Difference
  • Shinier Hair
  • Less Breakage
Rated 5 out of 5
Review posted

Fabulous

I love the way this makes my hair feel! But also that it only takes a little bit to wash my hair! It lasts so long!

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K18Hair

Thank you Lesa for your review!

Reviewed by Kimberly
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

Love this product

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K18Hair

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