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next level hair repair
jumpstart every client's healthiest holiday hair in 3 steps
rome 99% buildup
get stronger, more resilient hair
78% reduction in split ends
step 1 detox
step 2 repair
step 3 fight frizz
where K18 molecular repair works
artist spotlight: Tracy Devenport. See the possibilities of expression manifest under the microscope
5.0
Rated 5.0 out of 5 stars
28 Reviews

next level hair repair

Limited-edition routine powers client hair health at home

Professional Only

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Description

Jumpstart every client's healthiest holiday hair in 3 biotech-powered steps. Engineered to deeply clean, repair damage + smooth frizz on all hair types at home.

P.S Limited-edition packaging features the possibilities of expression manifested under a microscope. Get a molecular view of crystal formations from amino acids (what makes up the K18PEPTIDE™) by Tracy Debenport.

 

    A little goes a long way with our highly concentrated formulas. Start with the minimum recommended amount + build as needed.

    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 1-3 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.

    Includes a color-safe detox shampoo that helps break down 99% product buildup*, 95% sebum*, and 76% copper* after just one wash—prepping hair for maximum damage repair from the molecular repair hair mask.

    The leave-in molecular repair hair mask reverses hair damage caused by bleach* + color*, chemical services*, and heat* in just 4 minutes—restoring strength, softness, smoothness, and bounce.

    Finish with the molecular repair hair oil, a strengthening de-frizz solution that delivers immediate and long-term frizz control, improves shine, and seals split ends while offering 450°F (232°C) heat protection*.

    *Disclaimers

    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: Repairs hair damage caused by bleach* + color*, chemical services*, and heat* in just 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

    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.

    pairs well with
    professional molecular repair mist 300mL
    5.0
    Rated 5.0 out of 5 stars
    169 Reviews
    First step of K18REPAIR™ service restores up to 99% elasticity pre-service Log In / REGISTER

    Description

    Jumpstart every client's healthiest holiday hair in 3 biotech-powered steps. Engineered to deeply clean, repair damage + smooth frizz on all hair types at home.

    P.S Limited-edition packaging features the possibilities of expression manifested under a microscope. Get a molecular view of crystal formations from amino acids (what makes up the K18PEPTIDE™) by Tracy Debenport.

     

      got questions?
      Get started here
      Yes, it is better to recommend the full K18 routine for your client’s cleanest, healthiest hair and optimal molecular repair results. Before the mask and oil, our PEPTIDE PREP™ category tackles every kind of buildup to create their cleanest, healthiest hair canvas. With our molecular repair formulas, they get maximum damage repair plus additional styling benefits with the oil. Your clients can use the K18 routine at home to keep their healthy hair going in-between appointments.
      No, the detox shampoo will not dry your client’s 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
      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.
      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.
      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.
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      how molecular repair compares
      how K18 works

      Traveling into the innermost layers of hair, our K18PEPTIDE™ renews strength along the width AND length of hair for lasting strength where it matters.

      5.0
      Rated 5.0 out of 5 stars
      Based on 28 reviews
      Write a Review (Opens in a new window)
      28 reviews
      • robin p.
        Verified Reviewer
        I recommend this product
        Age 55 - 64
        Hair Concern Dryness, Split-Ends, Fragile/brittle hair, Frizz
        Hair Type Fine/Thin
        My Results Visible Difference, Less Breakage, Smoother Hair, Shinier Hair
        Rated 5 out of 5 stars
        3 days ago
        Best product for bleached hair

        When I tell you this k-18 molecular hair repair is BY FAR THE BEST PRODUCT ON THE MARKET PLEASE BELIEVE ME. I’ve been getting my hair bleached for the past 7 years and it started getting really dry, brittle and was looking like straw !!My stylist recommended this product . When I saw the price I was a little hesitant but I thought it has to be good if it costs so much and I felt my hair was worth taking a chance on and paying a little extra. As soon as I used it I saw a BIG DIFFERENCE IMMEDIATELY!!! Instant !!!I will never go without this product . EVER!! I wish I had before and after pics so show but unfortunately I don’t so Please take my word you will not be disappointed!!

        Was this helpful?
        K18Hair PRO
        4 hours ago

        The BEST! Thank you Robin!

      • Meriah Y.
        Verified Buyer
        I recommend this product
        Age 25 - 34
        Hair Concern Heat damage, Frizz, Fragile/brittle hair, Split-Ends, Dryness
        Hair Type Thick/Coarse, Curly/Coily
        My Results Visible Difference, Oil absorbed, Cleaner, fresher hair, Soft Touchable Hair, Odor eliminated
        Rated 5 out of 5 stars
        5 days ago
        Repair kit

        Loved it. Really feel a difference in the weight of my hair, the smell, and time allowed between washes. I get compliments on my hair again.

        Was this helpful?
        K18Hair PRO
        5 days ago

        Thank you for your review!

      • Jennifer H.
        Verified Buyer
        I recommend this product
        Age 45 - 54
        Hair Concern Color-care, Dryness, Extending time between washes, Chemical damage
        Hair Type Medium Density, Grey Hair, Straight/Wavy
        My Results Less Frizz, Visible Difference, Less Breakage, Smoother Hair, Shinier Hair
        Rated 5 out of 5 stars
        1 month ago
        Love it!

        My hair has never looked better! I dye my hair every 6 weeks or so and this has made such a difference!

        Was this helpful?
        K18Hair PRO
        1 month ago

        Thank you Jennifer! We appreciate your 5-star review!

      • Christie S.
        Verified Buyer
        I recommend this product
        Age 45 - 54
        Hair Concern Chemical damage, Heat damage, Split-Ends
        Hair Type Medium Density
        My Results Visible Difference, Less Breakage, Smoother Hair, Less Frizz
        Rated 5 out of 5 stars
        1 month ago
        It Works!

        I had damage to my hair from bleach, swimming and riding on our motorcycle. I am on a journey to grow out my hair and eliminate the layers. My girl cut as much as she could but my hair was still horrible looking. I had two choices. Cut it all off or try k18. K18 is working!!! My hair looks healthier and smoother each week. I am currently on week 3. This is going to save me a year of growth!

        Was this helpful?
        K18Hair PRO
        1 month ago

        Enjoy your results Christie! Thank you for your review!

      • Teresa
        I recommend this product
        Age 55 - 64
        Hair Concern Chemical damage, Heat damage, Dryness, Split-Ends, Fragile/brittle hair
        Hair Type Medium Density
        My Results Visible Difference, Less Breakage, Stronger Hair, Cleaner, fresher hair, Bouncy Hair
        Rated 5 out of 5 stars
        1 month ago
        K 18 mask leave in

        This product is awesome, my hair is blonde so it’s dry from coloring it, I had really blinded it up with bleach, I tried this product, first I used it, I could tell it was good, second time it is great, I definitely recommend it !!!

        Was this helpful?
        K18Hair PRO
        1 month ago

        Thank you for your 5-star review! We appreciate you Teresa!

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