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DAMAGE SHIELD pH protective shampoo

Retail size of our color-safe, protective shampoo to maintain hair health + strength
Rated 4.6 out of 5
Based on 173 reviews

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 gentle daily cleanse
  • microbiome-friendly microbiome-friendly
  • pH-optimized pH-optimized

Solo profesional

Acceso / REGISTRO

Every purchase supports K18 x Plastic Bank efforts to radically simplify waste.
In 2022 we stopped147 Metric tons of plastic
=
7.3M+ single-use plastic bottles from reaching the ocean

more to know

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

Key benefits

Safe but powerful cleansing: Plant-derived surfactants deliver safe but effective high-power cleansing to breakdown 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

How to use

For your services

  1. Use for higher frequency washing like multiple wash services or clients with less buildup.
  2. Massage into hair, focusing on scalp.
  3. Thoroughly rinse.
  4. Repeat as needed.

PRO TIP: pair with the DAMAGE SHIELD protective conditioner for clients that need added softening + conditioning post K18 treatment mask. Shampoo, towel-dry and apply the PRO leave-in molecular repair hair mask. Wait 4 minutes. Apply DAMAGE SHIELD conditioner and rinse thoroughly.

For client 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

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, Fragrance (Parfum), Limonene.

pairs well with
DAMAGE SHIELD protective conditioner 8.5oz (WHOLESALE)DAMAGE SHIELD protective conditioner 8.5oz (WHOLESALE)

DAMAGE SHIELD protective conditioner

Rated 4.7 out of 5
Based on 10 reviews
Smoothing conditioner detangles + protects from daily damage View DAMAGE SHIELD protective conditioner 8.5oz (WHOLESALE) product Acceso / REGISTRO
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aceite capilar reparador molecular

Rated 4.8 out of 5
Based on 208 reviews
Aceite sin peso que fortalece, repara daños y reduce el encrespamiento View Aceite Capilar Reparador Molecular (AL POR MAYOR) product Acceso / REGISTRO

Descripción

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

Is the formula of the DAMAGE SHIELD pH protective shampoo different from the PEPTIDE PREP™ pH maintenance shampoo?

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.

What makes the DAMAGE SHIELD pH protective shampoo special?

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 client’s 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 the healthiest hair from daily damage.

When do I use the DAMAGE SHIELD pH protective shampoo?

Use this gentle shampoo for higher frequency washing like multiple wash services or clients with less buildup. This pH-balanced formula is gentle enough to use every time you cleanse, delivering healthier hair and scalp after just one wash.

Why do I need both shampoos?

You need both shampoos to deliver the most effective clean while maintaining your client’s 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.

PRO to PRO

See how PRO stylists maintain hair health with DAMAGE SHIELD pH protective shampoo. 

Learn how dimensional color specialist Tabitha Dueñas gently uses DAMAGE SHIELD shampoo in a multi-wash lightening service.
See how natural/curly hair and color specialist Marcel Henriquez gently cleanses curls and coils.
K18Hair PRO

certified microbiome-friendly formula

Engineered with hair’s optimal pH levels in mind, this everyday cleanse keeps your clients’ scalp microbiome balanced for strong, smooth + healthy hair.
reseñas
average rating 4.6 out of 5
Based on 173 reviews
  • 5 Stars
    144 Reviews
  • 4 Stars
    10 Reviews
  • 3 Stars
    9 Reviews
  • 2 Stars
    3 Reviews
  • 1 Star
    7 Reviews
89% of reviewers would recommend this product to a friend
Customer photos and videos
173 Reviews
Reviewed by Yenisleidy D.
Verified Buyer
I recommend this product
Age
35 - 44
Hair Concern
  • Chemical damage
Hair Type
  • Fine/Thin
  • Medium Density
My Results
  • Less Frizz
  • Visible Difference
  • Stronger Hair
  • Less Breakage
  • Shinier Hair
Rated 5 out of 5
Review posted

Sorprendente

Mi cabello lo agradeció demasiado desde q estoy usando este producto los cambios son sorprendente desde el primer uso voy por mas

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K18Hair PRO

Apreciamos tu reseña.

Reviewed by Raylin W.
Verified Buyer
I recommend this product
Age
25 - 34
Client Hair Concerns
  • Frizz
  • Heat Damage
  • Color Care
Client Hair Types
  • Medium Density
  • Straight/Wavy
Client Results
  • Less Frizz
  • Stronger hair
  • Smoother Hair
  • Soft Touchable Hair
Rated 5 out of 5
Review posted

Great!

Love this shampoo. We have well water so it helps detox and leaves my hair smoother!

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K18Hair PRO

Thank you for your review Raylin!

Reviewed by Terry A.
Verified Buyer
I recommend this product
Age
65+
Client Hair Concerns
  • Chemical Damage
  • Split Ends
  • Frizz
Client Hair Types
  • Medium Density
  • Curly/Coily
  • Grey Hair
Client Results
  • Less Frizz
  • Bouncy Hair
  • Visible Difference
  • Shinier Hair
  • Smoother Hair
Rated 5 out of 5
Review posted

Salon Suite Hairstylist

The shampoo is so concentrated it's surprising how effective a small amount works.

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K18Hair PRO

Thank you Terry for your review!

Reviewed by Amanda G.
Verified Buyer
I recommend this product
Age
45 - 54
Hair Concern
  • Fragile/brittle hair
  • Heat damage
  • Dryness
Hair Type
  • Thick/Coarse
My Results
  • Less Frizz
  • Stronger Hair
  • Less Breakage
  • Visible Difference
  • Smoother Hair
Rated 5 out of 5
Review posted

K18 is life changing

I love this shampoo, I love the leave-in mask and I really, really love the detox shampoo. Nothing has made my hair feel more healthy than k18.

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K18Hair PRO

Thank you for your review Amanda!

Reviewed by Linn B.
Verified Buyer
I recommend this product
Age
65+
Hair Concern
  • Chemical damage
  • Frizz
Hair Type
  • Grey Hair
My Results
  • Less Frizz
  • Stronger Hair
  • Less Breakage
  • Smoother Hair
Rated 5 out of 5
Review posted

Unbelievable!

First wash...my hair felt like hair gain. 2nd wash, even better! The best product I have ever used.

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K18Hair PRO

Your the best! We appreciate your review Linn!

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