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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
4.7
Rated 4.7 out of 5 stars
353 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
4.6
Rated 4.6 out of 5 stars
252 Reviews
Nourishing conditioner shields hair from daily damage
K18 molecular repair hair oil
4.7
Rated 4.7 out of 5 stars
639 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?
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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.
feel what's possible with K18
See how K18 unlocks our community's expression
4.7
Rated 4.7 out of 5 stars
Based on 353 reviews
353 reviews
  • Joey B.
    Verified Buyer
    DAMAGE SHIELD protective shampoo 8.5oz
    Reviewing
    DAMAGE SHIELD protective shampoo 8.5oz
    I recommend this product
    Age 25 - 34
    Hair Concern Chemical damage, Heat damage, Color-care, Split-Ends, Extending time between washes
    Hair Type Straight/Wavy, Fine/Thin
    My Results Visible Difference, Stronger Hair, Less Breakage, Smoother Hair, Soft Touchable Hair
    Rated 5 out of 5 stars
    3 weeks ago
    Great!

    Great product for men!

    K Profile picture for K18Hair
    K18Hair
    3 weeks ago

    Thank you for your 5-star review!

  • Taylor R.
    Verified Buyer
    DAMAGE SHIELD protective shampoo 8.5oz
    Reviewing
    DAMAGE SHIELD protective shampoo 8.5oz
    I recommend this product
    Age 25 - 34
    Hair Concern Split-Ends, Frizz, Dryness
    Hair Type Fine/Thin, Medium Density, Curly/Coily
    My Results Visible Difference, Defined Curl/Wave Pattern, Stronger Hair, Less Frizz, Bouncy Hair
    Rated 5 out of 5 stars
    1 month ago
    Video of curls

    This is an update from my previous review with a video of my curls out of the shower

    No more heat damage

    Look at that bounce!

    K Profile picture for K18Hair
    K18Hair
    1 month ago

    We love it! Thank you for your review!

  • Estefania M.
    Verified Buyer
    DAMAGE SHIELD protective shampoo 8.5oz
    Reviewing
    DAMAGE SHIELD protective shampoo 8.5oz
    I recommend this product
    Age 25 - 34
    Hair Concern Chemical damage, Fragile/brittle hair, Dryness
    Hair Type Fine/Thin
    My Results Less Frizz, Stronger Hair, Smoother Hair, Less Breakage
    Rated 5 out of 5 stars
    3 months ago
    I love it

    I really like it, I was able to tint my hair again and it looks a little more thicker

    K Profile picture for K18Hair
    K18Hair
    3 months ago

    We appreciate your review!

  • Avery M.
    Verified Buyer
    mini DAMAGE SHIELD protective shampoo 1.8oz
    Reviewing
    mini DAMAGE SHIELD protective shampoo 1.8oz
    I recommend this product
    Age 18 - 24
    Hair Concern Heat damage, Frizz, Split-Ends
    Hair Type Medium Density, Straight/Wavy
    My Results Less Frizz, Visible Difference, Bouncy Hair, Stronger Hair, Less Breakage
    Rated 4 out of 5 stars
    3 months ago
    Love it!

    I’ve tried this my past couple washes and can say my hair feels so much healthier and even thicker. I used to use heat on my hair a lot and have been on a journey to get it back to being healthy and this one has definitely helped so far

    K Profile picture for K18Hair
    K18Hair
    3 months ago

    Thank you for taking us along with you on your healthy hair journey!

  • Katherine M.
    Verified Buyer
    mini DAMAGE SHIELD protective shampoo 1.8oz
    Reviewing
    mini DAMAGE SHIELD protective shampoo 1.8oz
    I recommend this product
    Age 25 - 34
    Hair Concern Heat damage, Frizz, Split-Ends, Dryness
    Hair Type Thick/Coarse, Curly/Coily
    My Results Less Frizz, Visible Difference, Less Breakage, Stronger Hair, Smoother Hair
    Rated 5 out of 5 stars
    3 months ago
    Love!!

    I was recommended this product from a coworker and it did not disappoint! I had been using so many different products back then to get my hair to what it so easily became now after using k18! It freshened and repaired my very heat damaged hair! After my first wash with k18 shampoo and conditioner, I noticed and felt the difference, my hair is less frizzy, stronger and silky smooth! I love it and highly recommend it!

    K Profile picture for K18Hair
    K18Hair
    3 months ago

    We love your review! Thank you Katherine!

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