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PEPTIDE PREP™ detox shampoo PEPTIDE PREP™ detox shampoo PEPTIDE PREP™ detox shampoo 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™. PEPTIDE PREP™ detox shampoo PEPTIDE PREP™ shampoos. engineered to clear the path for the most effective results with K18 mask. 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
PEPTIDE PREP™ detox shampoo
PEPTIDE PREP™ detox shampoo
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™.
PEPTIDE PREP™ detox shampoo
PEPTIDE PREP™ shampoos. engineered to clear the path for the most effective results with K18 mask.
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

Color-safe, non-stripping clarifying shampoo with the K18PEPTIDE™
Rated 4.7 out of 5
Based on 91 reviews
8.5 oz

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

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

Key benefits

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

How to use

  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.

Ingredients

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
Allure Best of Beauty Award Winner
Full-Size Leave-In Molecular Repair Hair Mask 50mLFull-Size Leave-In Molecular Repair Hair Mask 50mL

full-size leave-in molecular repair hair mask

Rated 4.6 out of 5
Based on 6854 reviews
4-minute leave-in treatment to reverse hair damage
Molecular Repair Hair OilMolecular Repair Hair Oil

molecular repair hair oil

Rated 4.8 out of 5
Based on 146 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

the PEPTIDE PREP™ difference

Engineered for the most effective clean

got questions?

Get started here

When do I use the detox shampoo?

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.

What makes the detox shampoo special?

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

How does the detox shampoo work?

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.

Will the detox shampoo dry my hair out?

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

Will the detox shampoo strip color?

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.

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 for every type of 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. 

reviews
Write a Review
average rating 4.7 out of 5
Based on 91 reviews
  • 5 Stars
    76 Reviews
  • 4 Stars
    8 Reviews
  • 3 Stars
    3 Reviews
  • 2 Stars
    2 Reviews
  • 1 Star
    2 Reviews
92% of reviewers would recommend this product to a friend
Customer photos and videos
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91 Reviews
Reviewed by Angel R J.
Verified Buyer
I recommend this product
Age
55 - 64
Hair Concern
  • Heat damage
  • Fragile/brittle hair
  • Dryness
  • Split-Ends
Hair Type
  • Medium Density
  • Grey Hair
  • Straight/Wavy
My Results
  • Stronger Hair
  • Less Breakage
  • Visible Difference
  • Defined Curl/Wave Pattern
  • Smoother Hair
Rated 5 out of 5
Review posted

Best clarifying shampoo

First of all, I’m allergic to almost everything and it’s very hard for me to find any shampoo and we have hard water that has destroyed my hair. This, along with the leave in has changed everything for me. It truly removes everything without parching my hair. My hair is very soft and getting so much better. My stylist noticed yesterday and asked what I was doing differently. I’m very excited to have found this and what it will do for me in the future.

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K18Hair

Thank you Angel for your review!

Reviewed by Susie c.
Verified Buyer
I recommend this product
Age
65+
Hair Concern
  • Chemical damage
  • Dryness
Hair Type
  • Fine/Thin
My Results
  • Stronger Hair
  • Visible Difference
  • Soft Touchable Hair
Rated 5 out of 5
Review posted

Susea

Only used it once but noticed the difference in my hair that day. Love the fragrance too!

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Reviewed by Sarah C.
Verified Buyer
I recommend this product
Age
35 - 44
Hair Concern
  • Dryness
  • Heat damage
  • Split-Ends
  • Frizz
  • Color-care
Hair Type
  • Fine/Thin
  • Straight/Wavy
My Results
  • Smoother Hair
  • Soft Touchable Hair
  • Shinier Hair
  • Less Breakage
Rated 5 out of 5
Review posted

The best day of the week!

I LOVE when it’s time for my weekly detox shampoo. My hair feels so clean afterwards without feeling stripped down. I’d definitely recommend this to anyone on the fence!

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K18Hair

Thank you for your review Sarah!

Reviewed by Megan B.
Verified Buyer
I recommend this product
Age
35 - 44
Hair Concern
  • Heat damage
  • Color-care
  • Split-Ends
My Results
  • Bouncy Hair
  • Visible Difference
  • Soft Touchable Hair
  • Smoother Hair
  • Shinier Hair
Rated 5 out of 5
Review posted

Loved the results

I was sold after the first time I tried this. I've been using the original K18 leave-in hair mask for a while now (washing first with a drugstore clarifying shampoo), but this really felt like it took my results to the next level. My hair felt lighter and bouncier and shinier. I have long, straight, fine hair (but a lot of it) and this shampoo, plus the leave-in mask were all I needed for an awesome hair day. Air dried! So glad I went for it and got this. Expensive, but you don't use it for every wash

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K18Hair

Thank you Megan for your review!

Reviewed by Teal M.
Verified Buyer
I recommend this product
Age
55 - 64
Hair Concern
  • Chemical damage
  • Color-care
  • Frizz
  • Split-Ends
  • Fragile/brittle hair
Hair Type
  • Fine/Thin
My Results
  • Less Frizz
  • Stronger Hair
  • Bouncy Hair
  • Visible Difference
  • Shinier Hair
Rated 4 out of 5
Review posted

Detox shampoo

This shampoo cleaned my hair very well . It did make my hair feel a bit dry but then I used k18 repair on it with a leave in conditioning spray and all was great .

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K18Hair

Thank you for your review Teal!

recommended products

Mini Leave-In Molecular Repair Hair Mask 15 mLMini Leave-In Molecular Repair Hair Mask 15 mL
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Rated 4.6 out of 5
Based on 6854 reviews
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Please select a size
Full Size - $75.00 50 mL Mini Size - $29.00 15 mL
PEPTIDE PREP™ detox shampoo 8.5ozPEPTIDE PREP™ detox shampoo 8.5oz
PEPTIDE PREP™ detox shampoo
Rated 4.7 out of 5
Based on 91 reviews
Color-safe, non-stripping clarifying shampoo with the K18PEPTIDE™
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