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Jumbo DAMAGE SHIELD protective shampoo
Regular price $85
Regular price $0 Sale price $85
K18 shampoo bottle on a blue background
K18 hair care product bottles in various sizes on a blue background
Jumbo DAMAGE SHIELD protective shampoo
Blue cleanser product with 'cleanse' text and branding on a blue background
infographic for pH shampoo with illustrations of hair cuticles on a blue background
K18 hair care products on a colorful background with text about healthy hair routines.
Hand holding a K18 product with clear liquid being dispensed against a blue background
K18 hair care routine guide with steps for repair and maintenance.
4.8
Rated 4.8 out of 5 stars
554 Reviews
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Jumbo DAMAGE SHIELD pH protective shampoo

Size:
16oz
Regular price $85
Regular price $0 Sale price $85
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Color:
16oz

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K18 shampoo bottle on a blue background

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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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K18 shampoo bottle on a blue background
K18 hair care product bottles in various sizes on a blue background
Jumbo DAMAGE SHIELD protective shampoo
Blue cleanser product with 'cleanse' text and branding on a blue background
infographic for pH shampoo with illustrations of hair cuticles on a blue background
K18 hair care products on a colorful background with text about healthy hair routines.
Hand holding a K18 product with clear liquid being dispensed against a blue background
K18 hair care routine guide with steps for repair and maintenance.
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 554 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
554 reviews
  • Gareth S.
    Verified Buyer
    Reviewing
    Jumbo DAMAGE SHIELD protective shampoo
    I recommend this product
    Age 45 - 54
    Hair Concern Frizz, Chemical damage, Dryness, Oily hair/scalp, Color-care
    Hair Type Thick/Coarse
    My Results Cleaner, fresher hair
    Rated 5 out of 5 stars
    2 hours ago
    Excellent Shampoo

    This shampoo smells clean, lathers well, and my hair and scalp feel squeaky clean after using it. It feels as if my hair has no residue contrasting to traditional shampoos. I am impressed with the shampoo. I was skeptical in purchasing but was pleasantly surprised at the size of the bottle and how clean my hair feels afterwards with zero residue!

    K Profile picture for K18Hair
    K18Hair
    1 hour ago

    Thank you so much for your wonderful 5-star review, Gareth! 💙 We're thrilled you're loving Jumbo DAMAGE SHIELD and that your hair feels so clean and residue-free. We appreciate your support!

  • Christina M.
    Verified Buyer
    Reviewing
    DAMAGE SHIELD protective shampoo 8.5oz
    I recommend this product
    Age 55 - 64
    Hair Concern Heat damage, Color-care, Split-Ends, Extending time between washes
    Hair Type Fine/Thin
    My Results Bouncy Hair, Less Frizz, Stronger Hair, Less Breakage
    Rated 5 out of 5 stars
    4 days ago
    Love this shampoo

    Has helped give my hair more body and feel healthier.

    K Profile picture for K18Hair
    K18Hair
    3 days ago

    Thank you so much for your amazing review, Christina! 💙 We're thrilled to hear that DAMAGE SHIELD is giving your hair more body and helping it feel healthier. We appreciate your support!

  • Alyssa D.
    Verified Buyer
    Reviewing
    Jumbo DAMAGE SHIELD protective shampoo
    I recommend this product
    Age 25 - 34
    Hair Concern Dryness, Color-care, Split-Ends, Extending time between washes, Oily hair/scalp
    Hair Type Medium Density
    My Results Less Frizz, Less Breakage, Stronger Hair, Cleaner, fresher hair, Visible Difference
    Rated 5 out of 5 stars
    1 week ago
    Better hair in a few washes

    Love this product! My hair already feels softer and healthier after 2-3 washes

    K Profile picture for K18Hair
    K18Hair
    1 week ago

    Thank you so much for the amazing review, Alyssa! 💙 We're thrilled to hear that Jumbo DAMAGE SHIELD is already making a difference for your hair! ✨

  • Stefanie R.
    Verified Buyer
    Reviewing
    Jumbo DAMAGE SHIELD protective shampoo
    I recommend this product
    Age 35 - 44
    Hair Concern Chemical damage, Heat damage, Color-care, Dryness, Split-Ends
    Hair Type Medium Density
    My Results Less Frizz, Visible Difference, Less Breakage, Stronger Hair, Soft Touchable Hair
    Rated 5 out of 5 stars
    2 weeks ago
    Best shampoo

    I am a blonde girl ever since using K shampoo my hair has welcome, moisture and less split ends I can’t live without this

    K Profile picture for K18Hair
    K18Hair
    2 weeks ago

    Thank you so much for the 5-star love, Stefanie! 💕 We're thrilled that Jumbo DAMAGE SHIELD is giving your blonde hair the moisture and care it deserves! ✨

  • Michelle M.
    Verified Buyer
    Reviewing
    Jumbo DAMAGE SHIELD protective shampoo
    I recommend this product
    Age 55 - 64
    Hair Concern Heat damage, Frizz, Fragile/brittle hair, Dryness
    Hair Type Fine/Thin
    My Results Less Frizz, Visible Difference, Stronger Hair, Less Breakage, Smoother Hair
    Rated 5 out of 5 stars
    2 weeks ago
    Brought My Hair Back to Life!

    After many years of bleaching, my hair had become so dry & damaged that nothing I tried seemed to help until I found the K18 Damage Shield Shampoo & Conditioner. Now my hair is soft, shiny & is growing! I can't recommend K18 enough!

    K Profile picture for K18Hair
    K18Hair
    2 weeks ago

    Thank you so much for the amazing 5-star review, Michelle! 💕 We're thrilled Damage Shield has brought your hair back to life! ✨

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