K18 PEPTIDE PREP™ pH Maintenance Shampoo

Rated 4.75 out of 5 based on 4 customer ratings
(4 customer reviews)


Hair happiness starts with the cleanest hair possible. A clean base means more vibrant colour, treatments perform more effectively, and styling products work better.

PEPTIDE PREP™ shampoos were formulated to create the cleanest canvas for all hair types, from gentle, regular cleansing to infrequent heavy-duty detox.

pH maintenance shampoo is the perfect everyday shampoo for daily cleanliness and maintenance. It is a gentler way to cleanse, a milder shampoo that is better suited to more frequent use for clean and optimized hair and scalp.

A gentle cleansing shampoo with optimized pH level to frequently cleanse without disturbing the delicate pH balance and moisture level on the hair and scalp. Ideal for those with hair that is not too oily, heavy, weighed down, or loaded with product buildup.

Creates the ideal foundation for healthy hair: the delicate cleansing formula protects the delicate pH balance to keep the hair cuticle closed during washing, maintaining its natural moisture and oil levels.
Cleanses smartly: plant-derived surfactants gently break down and remove dirt, product and oil.
Preps hair for treatment: acts as the perfect pre-treatment preparation. Everything performs better on a clean hair base including chemical services, treatments (like the K18 molecular repair hair mask), and styling products.

Specialised formulation protects pH balance: optimized product pH will not disturb hair or scalp environment, protecting keratin integrity and maintaining strength, all without stripping away moisture.
Cleans with less: formulated with an optimized list of only 17 skincare-inspired ingredients, so you can feel good about what’s in this shampoo — and what’s not (no fillers included!).
Promotes hair happiness: less dirt and oil means cleaner hair, leaving a clear and effective path for the K18Peptide™ molecular repair or anything else your hair wants to take on.

  1. Gentle enough to use every time you wash, so use when you feel it necessary
  2. Massage into hair and scalp to remove excess buildup
  3. Thoroughly rinse
  4. Repeat as needed

Unsure how often to use? See the below guide.

Colour-safe, non-sensitizing, dermatologist tested.
pH 4.0 – 5.0 formula.

Clean citrus.

Sulphates, parabens, phthalates, lilial, silicones, artificial colours, sodium chloride, formaldehyde, and formaldehyde donors. Vegan and cruelty-free.

Water (Aqua) (Eau), Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Sodium Methyl 2-Sulfolaurate, Sodium Lauryl Sulfoacetate, sh-Oligopeptide-78 (K18Peptide™), Panthenol, Glycerin, Sodium Phytate, Guar Hydroxypropyltrimonium Chloride, Disodium 2-Sulfolaurate, Caprylyl Glycol, Caprylhydroxamic Acid, Benzoic Acid, Citric Acid, Fragrance (Parfum), Limonene.


Is this shampoo for you?

Answer these!

Do you like to use gentle shampoo formulas?

Do you prefer to wash your hair more frequently with milder shampoo?

Is your hair free of large build-up of product, oil and debris?

If you answered yes to any of these, pH MAINTENANCE is the choice for you.

Perfectly paired with the K18™ leave-in molecular repair hair mask

Additional information




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Key Ingredients

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Brand K18



4 reviews for K18 PEPTIDE PREP™ pH Maintenance Shampoo

Based on 4 reviews
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1-4 of 4 reviews
  1. (0) (0)
  2. Ok nothing special

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  4. Product works very well

    (0) (0)

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