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hair repair starter set

Limited-edition set to repair damage + reduce frizz
Rated 4.6 out of 5
Based on 34 reviews

Hit reset on damage and frizz with this reparative, 3-step mini set.

  • PEPTIDE PREP™ detox shampoo removes buildup + metals for maximum molecular repair results.
  • Our bestselling leave-in molecular repair hair mask reverses damage in 4 minutes.
  • The molecular repair hair oil fights frizz from within for immediate + long-term frizz control.

     

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    more to know

    This science-powered set delivers cleaner, healthier, and frizz-free hair.

    Start with our color-safe detox shampoo to clear product buildup, excess oil, and metals from hard water. Follow with the bestselling leave-in molecular repair hair mask—powered by the K18PEPTIDE™ and clinically proven to reverse damage from bleach + color, chemical services, and heat* in 4 minutes. Finish with the oil, a strengthening defrizz solution that softens, adds shine, reduces split ends, and provides 450°F (232°C) heat protection*.

    *Disclaimers

    key benefits

    Just one use of PEPTIDE PREP™ detox shampoo removes*:
    99% of product buildup
    95% of sebum
    76% of copper

    One use of leave-in molecular repair hair mask delivers*: Healthier hair in 4 minutes

    One use of molecular repair hair oil delivers*:
    Clinically proven damage repair
    24-HR frizz control
    104% more shine
    78% reduction in split ends
    450°F (232°C) heat protection

    *Disclaimers

    how to use

    Begin with detox shampoo

    1. Massage detox shampoo into hair + scalp to remove excess buildup.
    2. Thoroughly rinse.
    3. Repeat as needed.
    4. Skip conditioner.

    Apply the leave-in molecular repair hair mask

    1. Towel-dry thoroughly.
    2. Apply 3-9 pumps of K18 leave-in molecular repair hair mask based on your length and density, starting at the ends and working up towards the roots.
    3. Let sit for 4 minutes. Do not rinse out.

    Finish with the molecular repair hair oil

    1. Apply 1-3 drops of molecular repair hair oil to damp hair, starting at the ends and working upward through the mid-lengths.
    2. Wait 4 minutes. Style as usual.
    3. Apply an additional 1-3 drops of molecular repair hair oil to dry hair as a finisher.
    4. A little goes a long way with our highly concentrated formulas. Start with the minimum recommended amount + build as needed.

    ingredients

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

    leave-in molecular repair hair mask
    Water (Aqua) (Eau), Alcohol Denat., Propylene Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20, sh-Oligopeptide-78 (K18PEPTIDE™), Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Isopropyl Alcohol, Tocopherol, Phenoxyethanol, Potassium Sorbate, Citric Acid, Fragrance (Parfum), Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol.

    molecular repair hair oil
    Caprylyl Caprylate/Caprate, Squalane, Persea Gratissima (Avocado) Oil, Helianthus Annuus (Sunflower) Oil, C13-15 Alkane, Undecane, Benzyl Alcohol, Tridecane, Castor Isostearate Succinate, Propanediol, sh-Oligopeptide-78, Fragrance (Parfum), Tocopherol, Cinnamal, Hexyl Cinnamal, Limonene, Linalool.

    pairs well with
    PEPTIDE PREP™ pH maintenance shampoo 8.5ozPEPTIDE PREP™ pH maintenance shampoo 8.5oz

    PEPTIDE PREP™ pH maintenance shampoo

    Rated 4.6 out of 5
    Based on 136 reviews
    Color-safe, pH-optimized cleansing shampoo formulated with K18PEPTIDE™ View PEPTIDE PREP™ pH maintenance shampoo 8.5oz product

    Description

    Hit reset on damage and frizz with this reparative, 3-step mini set.

    • PEPTIDE PREP™ detox shampoo removes buildup + metals for maximum molecular repair results.
    • Our bestselling leave-in molecular repair hair mask reverses damage in 4 minutes.
    • The molecular repair hair oil fights frizz from within for immediate + long-term frizz control.

       

      Image Comparison Drag Handle
      see molecular repair in action
      The K18 leave-in molecular repair hair mask delivers lasting + progressive results, for healthier hair with each use.

      the experts know

      Groundbreaking PRO stylists, scientists + beauty experts have unlocked new levels of expression with K18 molecular repair.

      got questions?

      Get started here

      Is it better to use the full K18 routine?

      Yes, the K18 routine was engineered to deliver your cleanest, healthiest hair for optimal molecular repair results. Before the mask and oil, our PEPTIDE PREP™ category tackles every kind of buildup to create your cleanest, healthiest hair canvas. With our molecular repair formulas, you get maximum damage repair plus additional styling benefits with the oil.

      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

      How do the molecular repair hair mask and oil work together?

      The molecular repair hair mask and oil work together to give you the reparative benefits of the K18PEPTIDE™ in both formulas. The oil will add additional frizz-reducing, styling, and heat-protecting properties. You can layer the oil on top of the mask after the 4-minute processing time.

      Will the mask block the molecular repair hair oil from penetrating?

      No, the mask will not block the molecular repair hair oil from penetrating. The mask is a highly concentrated treatment without any fillers so it won’t block the oil from penetrating. Like layering different skincare products, the oil can be layered on top of the mask without impacting its performance.

      Is the K18PEPTIDE™ in every K18 product?

      K18 molecular repair + PEPTIDE PREP™ shampoos are formulated with the K18PEPTIDE™. In our molecular repair products, the peptide works at the innermost layers to reverse hair damage. In our PEPTIDE PREP™ shampoos, the peptide helps reduce protein loss to help keep hair feeling healthy and strong.
      reviews
      average rating 4.6 out of 5
      Based on 34 reviews
      • 5 Stars
        29 Reviews
      • 4 Stars
        2 Reviews
      • 3 Stars
        0 Reviews
      • 2 Stars
        0 Reviews
      • 1 Star
        3 Reviews
      91% of reviewers would recommend this product to a friend
      Customer photos and videos
      34 Reviews
      Reviewed by Heather H.
      Verified Buyer
      I recommend this product
      Age
      45 - 54
      Hair Concern
      • Chemical damage
      • Heat damage
      • Split-Ends
      • Frizz
      • Fragile/brittle hair
      Hair Type
      • Fine/Thin
      My Results
      • Less Frizz
      • Visible Difference
      • Stronger Hair
      • Smoother Hair
      • Shinier Hair
      Rated 5 out of 5
      Review posted

      Amazing product

      This came highly recommended from my stylist and I couldn’t be more pleases with the results.

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      K18Hair

      Thank you for your review Heather!

      Reviewed by Pat L.
      Verified Buyer
      I recommend this product
      Age
      55 - 64
      Hair Concern
      • Dryness
      • Fragile/brittle hair
      • Color-care
      Hair Type
      • Medium Density
      • Straight/Wavy
      My Results
      • Bouncy Hair
      • Visible Difference
      • Stronger Hair
      • Smoother Hair
      • Shinier Hair
      Rated 5 out of 5
      Review posted

      Amazing!

      I have tried many shampoos and conditioners that claim to leave your hair healthy and soft. I ordered the trial set of K18 because my niece recommended it. I noticed how healthy her hair looked, so I thought I would give K18 a try. This is the first shampoo and conditioner that actually did what it claimed. My hair has never been so clean, without being dried out. My hair is soft and shiny,. You can tell it's just healthier. Amazing products,

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      K18Hair

      Thank you for your review Pat! Your amazing!

      Reviewed by Anna L.
      Verified Buyer
      I recommend this product
      Age
      55 - 64
      Hair Concern
      • Frizz
      • Dryness
      • Heat damage
      • Split-Ends
      • Color-care
      Hair Type
      • Medium Density
      My Results
      • Less Frizz
      • Less Breakage
      • Smoother Hair
      • Soft Touchable Hair
      Rated 5 out of 5
      Review posted

      Amazing product

      Loved it! Great product! I’m blonde my hair is dry and it felt amazing after I used the products.

      But it’s a bit pricey. I’ll buy it again but need to spread it out a bit.

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      K18Hair

      Thank you for your review Anna!

      Reviewed by Luz L.
      Verified Buyer
      I recommend this product
      Age
      45 - 54
      Hair Concern
      • Chemical damage
      • Frizz
      • Fragile/brittle hair
      • Dryness
      • Split-Ends
      Hair Type
      • Fine/Thin
      My Results
      • Less Frizz
      • Visible Difference
      • Stronger Hair
      • Less Breakage
      • Smoother Hair
      Rated 5 out of 5
      Review posted

      Amazing!

      Starting with the trial. Since first day when i used it you can see the difference in your hair, texture, no freeze looks healthier no porous. Looks like a virgin hair actually . Before and pic 2 after .

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      K18Hair

      Your hair looks amazing!! Thank you Luz for your review!

      Reviewed by Keisha M.
      Verified Buyer
      I recommend this product
      Age
      55 - 64
      Hair Concern
      • Split-Ends
      Hair Type
      • Thick/Coarse
      My Results
      • Less Frizz
      • Bouncy Hair
      • Visible Difference
      • Stronger Hair
      Rated 5 out of 5
      Review posted

      K.

      Wonderful!

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      K18Hair

      Thank you for your review!

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