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PEPTIDE PREP™ pH maintenance shampoo

Retail size of our color-safe, pH-optimized shampoo with K18PEPTIDE™
Rated 4.5 out of 5
Based on 84 reviews
A color-safe, pH-optimized shampoo with K18PEPTIDE™ to effectively cleanse while maintaining hair health for hair that feels strong, smooth, and healthy.
  • 17 ingredients + patented peptide 17 ingredients + patented peptide
  • microbiome-friendly microbiome-friendly
  • pH-optimized pH-optimized

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more to know

An optimized pH helps maintain the hair cuticle, which prevents excess water from entering the hair. Water entering the hair can cause damage, dullness, frizz, and tangling.

This pH maintenance shampoo:

Cleanses while smoothing the hair surface: Effective yet safe cleansers break down and remove dirt + oil for optimal nourishment and manageability.

Gentle enough for regular use: pH-optimized formula doesn’t disrupt the hair fiber or scalp microbiome and is safe to use every time you cleanse.

Creates the ideal foundation for healthy hair: This formula was engineered to create an optimal clean canvas without any fillers to coat or disrupt the hair and scalp equilibrium

Key benefits

An optimized pH shampoo (4.5-5.5) helps prevent excess swelling of the hair cuticle to help reduce frizz, preserve color, and maintain health and shine—especially important for damaged hair. An optimized pH also helps preserve the scalp microbiome and is gentle enough to use every time you cleanse.

  • 91% said hair feels healthier, smoother, and does not feel weighed down*
  • Certified microbiome-friendly: Scalp microbiome is preserved for a healthier-feeling scalp and a gentler cleanse
  • Color is maintained
  • Hair feels strong + healthy, appears smooth with reduced frizz
  • Hair is moisturized without being weighed down, easier to style + less tangled
  • Non-Sensitizing
  • Dermatologist tested

*results observed on 35 people after 21 days

How to use

For stylist use

  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.

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

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.

Description

A color-safe, pH-optimized shampoo with K18PEPTIDE™ to effectively cleanse while maintaining hair health for hair that feels strong, smooth, and healthy.

the PEPTIDE PREP™ difference

Engineered for the most effective clean

PRO to PRO

Learn why PRO stylist Lautrice Thompson trusts pH maintenance shampoo for an optimized cleanse without disturbing hair.

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What is the PEPTIDE PREP™ pH maintenance shampoo?

A color-safe shampoo, microdosed with the patented K18PEPTIDE™ that thoroughly cleanses hair and scalp without stripping or drying to keep hair feeling strong, healthy, and clean. Powerful yet non-stripping formula is designed with an optimized pH that is safe enough for everyday use.

What does the ph maintenance shampoo do?

Effective yet safe cleansers break down and remove dirt + oil for optimal nourishment and manageability.

When do I use the pH maintenance shampoo?

Engineered for higher frequency washing. Perfect for multi-wash services or clients with less buildup.

How does the pH maintenance shampoo work?

Plant-derived surfactants create high foaming + cleansing power without being harsh or leaving buildup behind on hair or scalp.

Why are the PEPTIDE PREP™ shampoos different?

Optimized with ideal pH for the hair + scalp environment, only 18 ingredients, no fillers, and the K18PEPTIDE™ to nourish hair while removing buildup, these shampoos are engineered to deliver a superior clean without stripping color or messing with hair + scalp balance. Whether you’re looking for an effective + gentle regular cleanse or a heavy-duty detox—these are the only 2 shampoos you need at the back bar.

microbiome-friendly

Optimized pH preserves a balanced scalp microbiome + protects hair’s natural moisture levels for a smooth hair result.

reviews
average rating 4.5 out of 5
Based on 84 reviews
  • 5 Stars
    66 Reviews
  • 4 Stars
    6 Reviews
  • 3 Stars
    4 Reviews
  • 2 Stars
    2 Reviews
  • 1 Star
    6 Reviews
86% of reviewers would recommend this product to a friend
Customer photos and videos
84 Reviews
Reviewed by Lucianna P.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Fantastic

Wonderful makes hair clean still soft not overly dry, good lather

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Reviewed by Robert S.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Tested on Family

I bought the shampoo for 3 of my family members, and they all LOOOVE it! Another great product!!!

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K18Hair PRO

Thank you for your review and for spreading the K18 love Robert!

Reviewed by Stephanie D.
Verified Buyer
I recommend this product
Age
65+
Hair Concern
  • Color-care
  • Dryness
Hair Type
  • Fine/Thin
My Results
  • Less Frizz
  • Soft Touchable Hair
Rated 4 out of 5
Review posted

Great Producy

Very Happy with this shampoo, hard to knot if it’s working but my. Hair feels great!

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K18Hair PRO

Thank you for your review Stephanie!

Reviewed by Margaret H.
Verified Buyer
I recommend this product
Age
65+
Hair Concern
  • Chemical damage
  • Heat damage
  • Color-care
  • Dryness
Hair Type
  • Medium Density
My Results
  • Bouncy Hair
  • Visible Difference
  • Shinier Hair
  • Smoother Hair
  • Soft Touchable Hair
Rated 5 out of 5
Review posted

Shampoo

I was surprised at the amount of suds I got. Actually, my scalp felt so much better after using this product.

I have tried many shampoos but this one is the best.!

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K18Hair PRO

Thank you for your review Margaret!

Reviewed by Shannon T.
Verified Buyer
I recommend this product
Age
25 - 34
Hair Concern
  • Fragile/brittle hair
  • Dryness
  • Split-Ends
Hair Type
  • Medium Density
  • Straight/Wavy
My Results
  • Stronger Hair
  • Less Breakage
  • Defined Curl/Wave Pattern
  • Less Frizz
  • Soft Touchable Hair
Rated 5 out of 5
Review posted

Amazing!!!

So I was skeptical at first but I've used the product 3 times already along with the leave in mask and my hair feels wonderful. Feels like I've just left the salon everytime after it dries!! I have hard water and my hair is normally always splitting and breaking but I haven't noticed my hair doing that and I'm so thankful!!

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K18Hair PRO

Thank you for your review Shannon!

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