K18 Damage Shield Protective Shampoo, Reduces Frizziness & Tangles, Maintains Hair Health

K18 Damage Shield Protective Shampoo, Reduces Frizziness & Tangles, Maintains Hair Health

 28K+ bought in past month
$38.90
$38.90 $49.90
SAVE 22% Sold out

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K18 Damage Shield Protective Shampoo, Reduces Frizziness & Tangles, Maintains Hair Health
$38.90
$38.90 $49.90
SAVE 22% Sold out

How to use

  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.

More to know

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.

Key benefits

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.

Ingredients

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.

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smooth + shield all hair types

pH-optimized formula prevents frizz, dullness + tangles for everyone.

  • Finally a shampoo that cleans without stripping! My hair feels incredibly soft, smooth, and healthy. It’s the perfect base for my hair routine. Absolutely obsessed with the shine!

  • This is so gentle on my color. It lathers beautifully and leaves my scalp feeling fresh. My hair has never looked this vibrant or felt this strong. Worth every penny!

  • My hair used to be so frizzy and dull, but this shampoo fixed it. It feels lightweight yet super powerful. My locks look like I just walked out of a salon. 10/10 recommend!

  • Seriously, the best shampoo I’ve ever used. It leaves my hair feeling so clean, bouncy, and incredibly healthy without any heavy buildup. A total must-have for every wash day!

    clinically proven cleanse

    91%

    said hair looks healthier*

    91%

    said hair feels smoother*

    91%

    said hair doesn’t feel weighed down*

    •  

      powered by K18 PEPTIDE™

      Biomimetic peptide clicks into hair's keratin structure -the source of core strength-for soft, shiny, bouncyresults that won't wash away.

    how to use

    Safe to use every time you wash.

    1. Massage into hair, focusing on scalp.
    2. Thoroughly rinse.
    3. Repeat as needed.
    For best results, follow with DAMAGE SHIELD protective conditioner.

    CLINICALLY PROVEN BENEFITS

    🏆 2022 Allure Best of Beauty Award Winner

    • Optimal pH Protection

    Engineered with a $5.0-6.0$ pH range to help close the cuticle and maintain hair moisture while enhancing natural shine.

    • Color-Safe Cleansing

    Effectively removes dirt and oil without stripping away your hair's natural moisture or fading your salon color.

    • Protein Loss Prevention

    Creates a protective shield that minimizes protein loss during the washing process, keeping hair stronger over time.

    • Powered by K18PEPTIDE™

    Features our patented biotech to prep the hair for maximum repair and maintain hair health with every wash.

    • Micro-Dosed for Daily Use

    A gentle, non-sensitizing formula designed for frequent washing without build-up or irritation.

    • Vegan + Cruelty-Free

    Clean, conscious hair science you can feel good about.

    K18 Damage Shield pH Protective Shampoo

    Key Benefits

    • Optimized pH Level
      The formula is designed to be gentle on damaged hair.
    • Microbiome-Friendly
      Certified formula that keeps your scalp healthy and balanced.
    • Powered by K18PEPTIDE™
      Formulated to maintain overall hair health and strength.
    • Enhanced Shine and Smoothness
      Helps reduce frizz and tangles while promoting a natural glow.
    • Universal Protection
      Made for all hair types and effectively protects hair color.
    • Clean and Ethical
      This product is 100% vegan and cruelty-free.

    HOW TO MAXIMIZE YOUR K18 REPAIR

    To maximize your K18 repair, remember to first skip the conditioner, which can leave a film that blocks the peptide. Next, towel-dry thoroughly to remove excess water, and then wait the full 4 minutes for the peptide to activate before using any other products or heat.

    You can also include a link to a detailed how-to guide to provide users with more comprehensive instructions.

    WHEN TO USE

    Every Time You Wash
    This pH-protective shampoo is gentle enough for daily use.

    Consistent Protection
    Regular use helps maintain scalp health and prevents future hair damage.

    Optimal Results
    Use it every time you cleanse to keep the hair cuticle smooth and strong.

    Customer Reviews

    • Rea

      Try it! It’s amazing! I bought the shampoo, conditioner and oil! It actually works wonders! 


      Verified Purchase

    • Gabi

      This is probably the best shampoo and conditioner I have ever used. My hair is naturally curly and it has never looked healthier.

      Verified Purchase

    • LRS

      Has done wonders for maintaining my hair and the abuse it gets. Highly recommend if you abuse your hair with bleach and heat.

      Verified Purchase

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      Got Questions?

      Is this shampoo safe for daily use?

      Yes. The formula is pH-balanced between 4.5 and 5.5 to match the natural environment of your hair and scalp. This makes it gentle enough for everyday cleansing without stripping away moisture or natural oils.

      Will this shampoo cause my hair color to fade?

      No. This shampoo is color-safe and specifically designed to prevent fading. By keeping the hair cuticle closed and smooth during washing, it helps lock in color molecules and enhances your hair’s natural shine.

      What does "Microbiome-Friendly" mean for my hair?

      It means the formula has been clinically tested to protect the natural ecosystem of your scalp. It removes dirt and oil while leaving the beneficial bacteria intact, which helps prevent scalp irritation and dryness.

      How does the K18PEPTIDE™ in the shampoo help my hair?

      The patented K18PEPTIDE™ works as a biotech-powered shield to prevent protein loss during washing. It reinforces the hair structure from the inside out, making your hair more resilient against environmental damage and daily styling.

      Is this shampoo suitable for all hair types?

      Yes. Whether your hair is fine, thick, curly, or straight, this universal formula provides essential protection. It works specifically to improve hair health for anyone dealing with damage from environmental stressors or daily styling.