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DAMAGE SHIELD protective shampoo 8.5oz
Regular price $39
Regular price $0 Sale price $39
A bottle of DAMAGE SHIELD protective shampoo by K18, with a white and blue label, indicating the size of 8.5 fl oz.
DAMAGE SHIELD protective shampoo 8.5oz
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 protective conditioner 8.5oz
Mini versus full size product comparison
K18 routine guide
4.8
Rated 4.8 out of 5 stars
549 Reviews

DAMAGE SHIELD pH protective shampoo

Size:
8.5oz
Regular price $39
Regular price $0 Sale price $39
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Color:
8.5oz

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A bottle of DAMAGE SHIELD protective shampoo by K18, with a white and blue label, indicating the size of 8.5 fl oz.

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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.

    • How to use
    • More to know
    • Key benefits
    • Ingredients
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A bottle of DAMAGE SHIELD protective shampoo by K18, with a white and blue label, indicating the size of 8.5 fl oz.
DAMAGE SHIELD protective shampoo 8.5oz
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 protective conditioner 8.5oz
Mini versus full size product comparison
K18 routine guide
your protective shampoo questions, answered
Is the formula of the DAMAGE SHIELD pH protective shampoo different from the PEPTIDE PREP™ pH maintenance shampoo?
What makes the DAMAGE SHIELD pH protective shampoo special?
When do I use the DAMAGE SHIELD pH protective shampoo?
Why do I need both shampoos?
clinically proven cleanse
91%
said hair looks healthier*
91%
said hair doesn’t feel weighed down*
how to use
feel what's possible with K18
4.8
Rated 4.8 out of 5 stars
Based on 549 reviews
95%would recommend these products
Reviews Summary
Customers say this shampoo transforms damaged and dry hair into softer, more manageable locks. Many reviews mention noticeable improvements in texture and manageability after just a few washes. Users with curly, straight, and color-treated hair report less frizz and improved shine. The shampoo cleanses thoroughly without stripping moisture. Several reviewers note it helps reduce tangles and makes styling easier. While most praise its effectiveness, some mention the premium price point.
Customers Talked About
549 reviews
  • Nicola M.
    Verified Buyer
    Reviewing
    Jumbo DAMAGE SHIELD protective shampoo
    I recommend this product
    Age 25 - 34
    Hair Concern Color-care, Dryness, Extending time between washes
    Hair Type Fine/Thin
    My Results Soft Touchable Hair, Cleaner, fresher hair
    Rated 5 out of 5 stars
    2 hours ago
    Love it!

    I switched to K18 shampoo after being really impressed with the dry shampoo. Never going back to my other brand! It gives me an extra day between washes, smells great, and my hair feels healthier than before.

    K Profile picture for K18Hair
    K18Hair
    55 minutes ago

    Thank you so much for the 5-star love, Nicola! 💕 We're thrilled you switched to Jumbo DAMAGE SHIELD and are loving it! ✨

  • Paula S.
    Verified Buyer
    Reviewing
    Jumbo DAMAGE SHIELD protective shampoo
    I recommend this product
    Age 65+
    Hair Concern Chemical damage, Frizz, Color-care, Heat damage
    Hair Type Medium Density
    My Results Stronger Hair, Less Frizz, Bouncy Hair, Less Breakage, Smoother Hair
    Rated 5 out of 5 stars
    13 hours ago
    K18

    I have blonde hair. Colored every 6 weeks at the roots. Since using their products my hair is so healthy and shiny. Love it!!

    K Profile picture for K18Hair
    K18Hair
    11 hours ago

    Thank you so much for the 5-star love, Paula! 💕 We're thrilled that Jumbo DAMAGE SHIELD is keeping your blonde hair healthy and shiny! ✨

  • Shannon P.
    Verified Buyer
    Reviewing
    mini DAMAGE SHIELD protective shampoo 1.8oz
    I recommend this product
    Age 45 - 54
    Hair Concern Chemical damage, Dryness, Extending time between washes, Heat damage
    Hair Type Medium Density
    My Results Soft Touchable Hair, Bouncy Hair, Stronger Hair, Less Breakage
    Rated 5 out of 5 stars
    Yesterday
    Healing my hair

    I love all the K18 products. They make my hair feel clean and healthy. They truly are making my hair healthy again. The Shampoo is light and I find when I use another brand, it feels heavier. The K18 shampoo makes it feel clean again.

    K Profile picture for K18Hair
    K18Hair
    Yesterday

    Thank you so much for the amazing review, Shannon! 💕 We're thrilled to hear that our K18 products are helping heal your hair and making it feel clean and healthy again. We love that you're noticing the difference with our shampoo - it means the world to us! ✨

  • Julie
    Reviewing
    Jumbo DAMAGE SHIELD protective shampoo
    I recommend this product
    Rated 5 out of 5 stars
    5 days ago
    5 Stars

    Best!!!

    K Profile picture for K18Hair
    K18Hair
    5 days ago

    Thank you so much for the 5-star love! 💕 We’re thrilled to hear you think our Damage Shield Shampoo is the best! ✨

  • Madina S.
    Verified Buyer
    Reviewing
    Jumbo DAMAGE SHIELD protective shampoo
    I recommend this product
    Age 18 - 24
    Hair Concern Color-care
    Hair Type Medium Density
    My Results Less Frizz, Stronger Hair, Less Breakage, Defined Curl/Wave Pattern
    Rated 5 out of 5 stars
    1 week ago
    Best Shampoo

    I started using k18 for a while now after getting my hair colored and it’s been the best thing ever. It helped my hair so much and kept it healthy if after dying it. I don’t know what I would have done without this shampoo.

    K Profile picture for K18Hair
    K18Hair
    1 week ago

    We love hearing this! 💗 We're so glad our Damage Shield Shampoo has been there for your colored hair and kept it healthy. Thank you for making K18 part of your routine! ✨

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