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PEPTIDE PREP™ detox shampoo 8.5 oz
color-safe clarifying, clear the path for maximum K18 mask results
PEPTIDE PREP™ detox shampoo 8.5oz
Clarify. for less frequent heavy duty washing. just one wash removes 99% of product buildup*, 95% of sebum*, and 76% of copper*. Formulated with K18PEPTIDE™.
how to use shampoos with your K18 mask. 1. shampoo, depending on level of clean needed detox or pH maintenance. 2. towel dry. 3. K18 leave-in mask. 4. wait 4 minutes. 5. style as usual.
PEPTIDE PREP™ detox shampoo
K18 routine guide
Rated 4.8 out of 5
Based on 358 reviews

PEPTIDE PREP™ detox shampoo

Color-safe, non-stripping clarifying shampoo with the K18PEPTIDE™
OR

Description

A color-safe, non-stripping clarifying shampoo with the K18PEPTIDE™ to gently but effectively remove 99% product buildup*, 95% sebum* + 76% copper* for detoxified, refreshed hair.

*Disclaimers

  • pH-optimized
  • clears excess buildup
  • 17 ingredients + patented peptide

Deeply cleanses hair and scalp: A non-stripping, pH-optimized lather works to unclog hair follicles while banishing dirt, oils, metals from hard and tap water, and things left behind from heavy product buildup. Reduces 99% product buildup*, 95% sebum* + 76% copper* after just 1 wash

Clears the path: Intentional formulation means no fillers or deposits left behind leaving the cleanest canvas for maximum K18 Molecular Repair Leave-in Treatment results

Uniquely targets metals present in tap and hard water: Tackles common metals like nickel, cadmium, lead, zinc, iron that can cause dullness and buildup on the hair

*Disclaimers

Intentional ingredients remove buildup without stripping:

Purposeful formulation powered by active skincare-inspired ingredients (no fillers) to clean effectively without stripping it or messing with your color. Features 17 ingredients, plus our patented peptide

Activated charcoal absorbs toxins, excess oils, and dirt in the hair and scalp

Salicylic Acid clears sebum buildup in follicles without stripping hair of essential moisture and lipids

K18PEPTIDE™ helps reduce protein loss to help keep hair feeling healthy and strong

  1. Swap out your regular shampoo for this power wash 1x weekly or as needed.
  2. Massage into hair + scalp to remove excess buildup.
  3. Thoroughly rinse.
  4. Repeat as needed.

Creates a clean canvas for optimal results from K18 molecular repair formulas.

Water (Aqua) (Eau), Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Hydroxysultaine, Salicylic Acid, Charcoal Powder, sh-Oligopeptide-78, Panthenol, Glycerin, Sodium Phytate, Guar Hydroxypropyltrimonium Chloride, Caprylyl Glycol, Caprylhydroxamic Acid, Citric Acid, Potassium Hydroxide, Sodium Hydroxide, Fragrance (Parfum), Benzyl Salicylate, Limonene.

pairs well with
full-size leave-in molecular repair hair mask
Rated 4.7 out of 5
Based on 7791 reviews
4-minute leave-in treatment to reverse hair damage
K18 molecular repair hair oil
Rated 4.7 out of 5
Based on 595 reviews
Weightless oil that strengthens, repairs damage + reduces frizz

Description

A color-safe, non-stripping clarifying shampoo with the K18PEPTIDE™ to gently but effectively remove 99% product buildup*, 95% sebum* + 76% copper* for detoxified, refreshed hair.

*Disclaimers

got questions?

Get started here
Swap out your regular shampoo for this power wash 1x weekly or as needed. Everyone, regardless of hair type or product usage, should use a detox shampoo regularly to remove buildup, reset texture, and optimize the performance of products and stylers—like K18 molecular repair.
This detox shampoo effectively clarifies hair of buildup and metals common in tap and hard water, including 99% of product buildup, 95% of sebum + 76% copper after just 1 wash*. The pH-optimized formula is color-safe and won’t leave your hair over-stripped or easily tangled, while our patented K18PEPTIDE™ helps to maintain hair strength with no fillers or deposits left behind. BONUS: Clean hair helps optimize results from products and treatments, like K18 molecular repair formulas. *Disclaimers
The detox shampoo works from Activated Charcoal absorbing toxins, excess oils, and dirt in the hair and scalp, while Salicylic Acid clears sebum buildup in follicles without stripping hair of essential moisture and lipids. The K18PEPTIDE™ helps reduce protein loss to help keep hair feeling healthy and strong while you wash.
No, the detox shampoo will not dry your hair out. This non-stripping formula has a pH of 3.8-4.2 that won’t leave hair over-stripped. In a consumer study, 90%* said hair feels clean without feeling dry. *Disclaimers
No, the detox shampoo will not strip your color. This color-safe formula is optimized with pH 3.8-4.2 to help maintain your color, and uniquely targets common metals present in tap and hard water that can cause dullness.

the PEPTIDE PREP® difference

Engineered for the most effective clean

pH-optimized formulas

Engineered with optimized pH ranges to maintain hair + scalp equilibrium, protecting color + moisture levels no matter the intensity of your wash.

feel what's possible with K18

See how K18 unlocks our community's expression

reviews

average rating 4.8 out of 5
Based on 358 reviews
  • 5 Stars
    323 Reviews
  • 4 Stars
    20 Reviews
  • 3 Stars
    5 Reviews
  • 2 Stars
    3 Reviews
  • 1 Star
    7 Reviews
96% of reviewers would recommend this product to a friend
358 Reviews
Reviewed by Bonnie B.
Verified Buyer
I recommend this product
Age
45 - 54
Hair Concern
  • Extending time between washes
  • Color-care
  • Heat damage
  • Oily hair/scalp
Hair Type
  • Fine/Thin
My Results
  • Visible Difference
  • Bouncy Hair
  • Shinier Hair
  • Cleaner, fresher hair
  • Soft Touchable Hair
Rated 5 out of 5
Review posted

Great scalp care!

Loved this product the very first time. Cleaned my 7 day old extremely dirty hair. Lived the way it foamed up and got rid of all the oils and build up.

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K18Hair

Thank you for your review!

Reviewed by Justine R.
Verified Buyer
I recommend this product
Age
35 - 44
Hair Concern
  • Heat damage
  • Oily hair/scalp
  • Chemical damage
  • Dryness
  • Frizz
Hair Type
  • Medium Density
  • Straight/Wavy
My Results
  • Less Frizz
  • Visible Difference
  • Oil absorbed
  • Cleaner, fresher hair
  • Soft Touchable Hair
Rated 5 out of 5
Review posted

Cleared up my dandruff

When I mean this works it truly works. I love it!🥰

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K18Hair

We love your 5-star review! Thank you!

Reviewed by Tiffany B.
Verified Buyer
I recommend this product
Age
55 - 64
Hair Concern
  • Dryness
  • Fragile/brittle hair
Hair Type
  • Thick/Coarse
My Results
  • Soft Touchable Hair
  • Less Breakage
  • Visible Difference
Rated 5 out of 5
Review posted

Peptide Prep Detox Shampoo is the truth

The peptide detox shampoo is the truth! It cleansed my hair and scalp squeaky clean. It allows my hair to accept moisture products and helps with dryness and made my hair feel so soft! I would highly recommend this detox shampoo!

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K18Hair

Clean and healthy are two amazing qualities! Enjoy!

Reviewed by Morgan D.
Verified Buyer
I recommend this product
Age
35 - 44
Hair Concern
  • Oily hair/scalp
  • Extending time between washes
  • Split-Ends
  • Color-care
  • Dryness
Hair Type
  • Fine/Thin
My Results
  • Stronger Hair
  • Less Breakage
  • Cleaner, fresher hair
  • Soft Touchable Hair
Rated 5 out of 5
Review posted

Love this product!

I feel like this truly gets all of the build up of process and such off of my hair. It also does that without excessively drying it. If you saw my ends before, you would be shocked at the difference.

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K18Hair

No dry hair here! Thank you for your 5-star review!

Reviewed by Toni G.
Verified Buyer
I recommend this product
Age
65+
Hair Concern
  • Chemical damage
  • Frizz
  • Fragile/brittle hair
Hair Type
  • Fine/Thin
My Results
  • Visible Difference
  • Shinier Hair
Rated 5 out of 5
Review posted

I think this is really helping my hair

I'm liking the detox shampoo and smells great

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K18Hair

Happy healthy hair journey! We appreciate your review!

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full-size leave-in molecular repair hair mask
Rated 4.7 out of 5
Based on 7791 reviews
4-minute leave-in treatment to reverse hair damage
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