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mini DAMAGE SHIELD protective shampoo 1.8oz
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
K18 routine guide
Rated 4.6 out of 5
Based on 337 reviews

mini DAMAGE SHIELD pH protective shampoo

Color-safe protective shampoo maintains hair health + strength
OR

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 cleanse
  • microbiome-friendly
  • pH-optimized

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 220 reviews
Nourishing conditioner shields hair from daily damage
K18 molecular repair hair oil
Rated 4.7 out of 5
Based on 599 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.

have questions?

Get started here
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.

feel what's possible with K18

See how K18 unlocks our community's expression

reviews

average rating 4.6 out of 5
Based on 337 reviews
  • 5 Stars
    286 Reviews
  • 4 Stars
    18 Reviews
  • 3 Stars
    12 Reviews
  • 2 Stars
    8 Reviews
  • 1 Star
    13 Reviews
90% of reviewers would recommend this product to a friend
337 Reviews
Reviewed by amy m.
Verified Buyer
I recommend this product
Age
55 - 64
Hair Concern
  • Color-care
  • Heat damage
  • Extending time between washes
Hair Type
  • Medium Density
My Results
  • Less Breakage
  • Defined Curl/Wave Pattern
  • Cleaner, fresher hair
  • Stronger Hair
Rated 5 out of 5
Review posted

Love this stuff

Loving this shampoo! Makes my hair manageable and looks healthy!

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K18Hair

We appreciate your 5-star review! Thank you Amy!

Reviewed by Joi M.
Verified Buyer
I recommend this product
Age
55 - 64
Hair Concern
  • Color-care
  • Frizz
  • Dryness
Hair Type
  • Fine/Thin
  • Straight/Wavy
My Results
  • Visible Difference
  • Smoother Hair
  • Less Frizz
  • Soft Touchable Hair
Rated 5 out of 5
Review posted

Great Product!

I had bought a mini size to test out this shampoo. After one wash, I ordered the full size.

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K18Hair

Thank you for your 5-star review!

Reviewed by Linda S.
Verified Buyer
I recommend this product
Age
45 - 54
Client Hair Concerns
  • Chemical Damage
  • Fragile/Brittle Hair
  • Split Ends
  • Extending time between washes
Client Hair Types
  • Fine/Thin
Client Results
  • Less Frizz
  • Visible Difference
  • Stronger hair
  • Less Breakage
  • Soft Touchable Hair
Rated 5 out of 5
Review posted

Better than olaplex!

Its really amazing. My hair feels and looks super healthy

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K18Hair

Thank you Linda! We appreciate your review!

Reviewed by Danielle G.
Verified Buyer
I recommend this product
Age
45 - 54
Hair Concern
  • Heat damage
  • Chemical damage
  • Oily hair/scalp
Hair Type
  • Fine/Thin
My Results
  • Visible Difference
  • Stronger Hair
  • Soft Touchable Hair
Rated 5 out of 5
Review posted

Love this

Protects my hair, but keeps it clean!

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K18Hair

Thank you Danielle! We appreciate your 5-star review!

Reviewed by Kelly F.
Verified Buyer
I recommend this product
Age
25 - 34
Hair Concern
  • Chemical damage
  • Heat damage
  • Color-care
  • Frizz
  • Dryness
Hair Type
  • Thick/Coarse
  • Curly/Coily
My Results
  • Less Frizz
  • Bouncy Hair
  • Visible Difference
  • Stronger Hair
  • Less Breakage
Rated 5 out of 5
Review posted

The best stuff I've ever used

This is the only product that actually does what it says it will do. I know that it's expensive but I will say I've spent more on products that promise just as much that did way less. I bleach my hair and color it and have for over a decade and this is the one thing that's made it feel like hair again

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K18Hair

Thank you for your review! Healthy hair feels amazing, right?

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