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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 292 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 166 reviews
Nourishing conditioner shields hair from daily damage

K18 molecular repair hair oil

Rated 4.7 out of 5
Based on 483 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 292 reviews
  • 5 Stars
    244 Reviews
  • 4 Stars
    15 Reviews
  • 3 Stars
    12 Reviews
  • 2 Stars
    8 Reviews
  • 1 Star
    13 Reviews
89% of reviewers would recommend this product to a friend
Customer photos and videos
292 Reviews
Reviewed by Terri
Verified Reviewer
I recommend this product
Age
45 - 54
Hair Concern
  • Heat damage
  • Frizz
  • Fragile/brittle hair
  • Dryness
  • Split-Ends
Hair Type
  • Thick/Coarse
My Results
  • Bouncy Hair
  • Stronger Hair
  • Smoother Hair
  • Soft Touchable Hair
  • Shinier Hair
Rated 5 out of 5
Review posted

OMG! The Best

This is the best shampoo I have used yet for hair. My hair is long, thick and course and very damaged and after one use of this shampoo I can see the difference I also used the used conditioner and oil but the difference is like night and day

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K18Hair

Thank you for your review Terri!

Reviewed by Louise T.
Verified Buyer
I recommend this product
Age
65+
Hair Concern
  • Fragile/brittle hair
  • Dryness
Hair Type
  • Fine/Thin
My Results
  • Smoother Hair
  • Cleaner, fresher hair
Rated 5 out of 5
Review posted

Shield Shampoo

Shampoo is an excellent product, it leaves my hair soft and manageable

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K18Hair

Thank you for your 5 star review Louise!

Reviewed by Donna B.
Verified Buyer
I recommend this product
Age
55 - 64
Hair Concern
  • Color-care
  • Frizz
  • Fragile/brittle hair
Hair Type
  • Medium Density
My Results
  • Less Frizz
  • Visible Difference
  • Less Breakage
  • Cleaner, fresher hair
  • Soft Touchable Hair
Rated 5 out of 5
Review posted

Love

I love this shampoo and conditioner, I have definitely noticed a difference in my hair. My new hair go to products .

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K18Hair

Thank you Donna for your review!

Reviewed by Scheins R.
Verified Buyer
I recommend this product
Age
45 - 54
Hair Concern
  • Frizz
Hair Type
  • Fine/Thin
  • Curly/Coily
My Results
  • Less Frizz
Rated 4 out of 5
Review posted

shampoo

same with the conditioner. it needs a pump for getting it out easier

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K18Hair

I will forward your concerns to our product development team. Thank you for your review!

Reviewed by Rhonda S.
Verified Buyer
I recommend this product
Age
55 - 64
Hair Concern
  • Chemical damage
  • Heat damage
  • Color-care
  • Frizz
  • Extending time between washes
Hair Type
  • Medium Density
My Results
  • Less Frizz
  • Bouncy Hair
  • Visible Difference
  • Soft Touchable Hair
  • Stronger Hair
Rated 5 out of 5
Review posted

Amazing!

This shampoo is amazing. Conditioner too! I have tried everything. My hair is bleached and was over processed. I had a lot of breakage especially in my temples. Have been using this for a couple of weeks now and my hair is transformed in this short period. My hair stays cleaner longer too. Can go three days between washes. I absolutely love this. Ladies if you are undecided about ordering, don’t be. Order it now. It’s a little pricey but totally worth it.

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K18Hair

Thank you Rhonda! We appreciate your review!

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