Looks like you're visiting from the US, you're about to be redirected to our US site

10
Done
molecular repair hair oil
mini hair oil bottle with product details beside it.
Bleach blonde hair before and after results using k18.
Red curly hair before and after results using k18.
dark coily hair before + after styling with k18 hair products.
Grey curly hair before and after results using k18.
highly concentrated formula. start with 1-3 drops, build as needed.
silicone-free weightless oil is powered: K18PEPTIDE(TM), Avocado Oil, Sunflower Oil, Hemisqualane + Squalane.
how damage + frizz related? before + after of outer and inner layer
are you using K18 mask today?
K18 vs. other oils
Mini versus full size product comparison
K18 routine guide
tile tsa-approved | color: black
4.9
Rated 4.9 out of 5 stars
97 Reviews

mini molecular repair hair oil

Weightless oil that strengthens, repairs damage + reduces frizz
COMING SOON

Description

This biotech-engineered weightless oil works on all hair types to strengthen, repair damage, reduce frizz at two levels of the hair fiber, and improve shine.

  • clinically proven damage repair
  • 24-HR frizz control
  • 104% more shine
  • 78% reduction in split ends
  • 450°F (232°C) heat protection

Apply to damp, towel-dried hair before styling, or on dry hair as a finisher. Highly concentrated formula. Start with 1-3 drops and build as needed.

Use on damp hair for: strengthening benefits and to reduce frizz during air-dry or styling.

Use on dry hair to: smooth frizz and flyaways, as a finisher to add shine.

  • Apply to damp hair from mid-lengths to ends. For strengthening benefits from the K18PEPTIDE™ wait 4 minutes before styling.
  • Apply to dry hair as a finisher.

Pro Tip - If using the K18 molecular repair mask, apply the mask first on clean, damp hair, then wait 4 minutes. Apply the molecular repair hair oil, and wait 4 minutes for maximum strengthening results.

Strengthening, smoothing hair oil works on two levels of the hair fiber to fight frizz.

The K18PEPTIDE™ works to address deeper-level damage that causes frizz—repairing and strengthening damage at the innermost layer of hair to reverse damage that leads to frizz.

On the surface of hair, natural oils like avocado and sunflower oil, and hemisqualane and squalane nourish while smoothing frizz + flyaways to improve color vibrancy, enhance shine, and provide 450°F (232°C) heat protection.

  • Clinically proven to repair damaged hair.*
  • 24-HR frizz control*
  • 104% increase in shine*
  • 78% reduction in split ends*
  • 450°F (232°C) heat protection*

*Disclaimers

This silicone-free oil fights frizz differently by addressing the damage that causes frizz long-term and immediately smoothing frizz + flyaways.

  • Reverses frizz-causing damage: Works at the molecular level to repair damaged hair, which is more susceptible to frizz.
  • Reduces frizz + flyaways: Natural oils work on the surface of the hair to smooth the cuticle + soften without weighing hair down.
  • Enhances shine + color vibrancy: Nourished, moisturized hair reflects higher shine and boosts color dimension.
  • Delivers heat protection: to prevent further frizz-causing damage up to 232°C.

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
bestseller
full-size leave-in molecular repair hair mask
4.7
Rated 4.7 out of 5 stars
4,496 Reviews
4-minute leave-in treatment to reverse hair damage

Description

This biotech-engineered weightless oil works on all hair types to strengthen, repair damage, reduce frizz at two levels of the hair fiber, and improve shine.

got questions?
Get started here.
We recommend using the oil with the mask for maximum molecular repair with additional styling benefits. Think of the mask as a damage repair treatment after washing your hair. The oil is for smoothing, styling and strengthening after the mask, and can be used on damp and dry hair.
Yes, this oil provides heat protection up to 232°C.
No, it will not leave buildup or weigh down your hair. This weightless oil is powered by intentional ingredients to reduce frizz-causing damage on the molecular level inside the hair fiber, while natural oils work on the surface of hair without weighing it down.

Plus, you don’t need much of this highly concentrated formula to see results, just use 1-3 drops and build as needed. If you’re concerned about buildup, use our detox shampoo to remove 99% of product buildup after just 1 wash*.
*Disclaimers
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.
Instead of mixing the oil and mask together, get the most effective repair and styling benefits by using the mask first, waiting 4 minutes, and then applying the oil.
clinically proven smoothness 
0
hour frizz control*
0
more shine*
0
reduction in split ends*
0
degree C heat protection*
how to use molecular repair oil
Highly concentrated formula. Start with 1-3 drops and build as needed.


1. Apply 1-3 drops to towel-dried hair from mid-lengths to ends.

2. For strengthening benefits from the K18PEPTIDE™, wait 4 minutes before styling.

3. Apply 1-3 drops to dry hair as a finisher.
feel what's possible with K18
See how K18 unlocks our community's expression
4.9
Rated 4.9 out of 5 stars
Based on 97 reviews
97 reviews
  • Marisa M.
    Verified Buyer
    I recommend this product
    Age 45 - 54
    Hair Concern Dryness
    Hair Type Grey Hair
    My Results Smoother Hair
    Rated 5 out of 5 stars
    3 months ago
    Smooths ends

    Takes away the frizz while smoothing dry ends

    KU Profile picture for K18Hair UK
    K18Hair UK
    2 months ago

    Smooth hair with our Molecular Repair Oil! Thank you for your 5-star review!

  • Morgan P.
    Verified Buyer
    I recommend this product
    Age 25 - 34
    Hair Concern Dryness
    Hair Type Fine/Thin
    My Results Cleaner, fresher hair
    Rated 5 out of 5 stars
    5 months ago
    So helpful!

    Love it! So nice and healthy

    KU Profile picture for K18Hair UK
    K18Hair UK
    5 months ago

    Thank you for your 5-star review!

  • Jennifer S.
    Verified Buyer
    I recommend this product
    Age 45 - 54
    Hair Concern Chemical damage, Color-care, Frizz, Split-Ends, Dryness
    Hair Type Medium Density, Straight/Wavy
    My Results Less Frizz, Less Breakage, Smoother Hair, Soft Touchable Hair, Shinier Hair
    Rated 5 out of 5 stars
    6 months ago
    Love this hair oil

    This hair oil is the best, my hair feels so soft and shiny!

    KU Profile picture for K18Hair UK
    K18Hair UK
    6 months ago

    We agree it is the best! Thank you for your review!

  • Sarah S.
    Verified Buyer
    I recommend this product
    Age 25 - 34
    Hair Concern Color-care, Dryness
    Hair Type Fine/Thin
    My Results Visible Difference, Less Frizz, Less Breakage, Smoother Hair, Shinier Hair
    Rated 5 out of 5 stars
    7 months ago
    Love how it feels

    Love how it makes my hair feel after using it even just for a couple weeks! Amazing product line

    KU Profile picture for K18Hair UK
    K18Hair UK
    7 months ago

    Thank you Sarah! Your hair is beautiful!

  • Cherrie C.
    Verified Buyer
    I recommend this product
    Age 65+
    Hair Concern Chemical damage, Dryness
    Hair Type Thick/Coarse
    My Results Defined Curl/Wave Pattern, Visible Difference, Less Frizz
    Rated 5 out of 5 stars
    7 months ago
    Repair hair oil

    Soft and shiny hair with these drops

    KU Profile picture for K18Hair UK
    K18Hair UK
    7 months ago

    This was the goal! Thank you!

Pro Distribution Partners

Paramount Beauty Supply
USA
Salon Services Pro
USA
Salon Service Group
USA
Salonwax Pro
USA
Premier Beauty Supply
USA
Launching Soon
Ozdare - Australia
AU
 
Launching Soon
American Crew Ltd. - New Zealand
NZ
 
Launching Soon
PlayGround - Hong Kong
HK
 
Launching Soon
Session Map - Sweden
SE
 
Launching Soon
Cyprus
CY
 
Launching Soon
Belgium
BE
 
Coming Early 2021
Canada
CA
 
Coming Early 2021
Czech Republic
CZ
 
Coming Early 2021
Finland
FI
 
Coming Early 2021
France
FR
 
Coming Early 2021
Germany
DE
 
Coming Early 2021
Ireland
IR
 
Coming Early 2021
Italy
IT
 
Coming Early 2021
Netherlands
NL
 
Coming Early 2021
Norway
NO
 
Coming Early 2021
Singapore
SG
 
Coming Early 2021
Taiwan
TW
 
Coming Early 2021
UK
UK
 
Coming Early 2021
thank you for visiting!

You are now being redirected to an official partner website for this region where you can shop K18 Hair.

Changed your mind? Go back.

00:00
subscribe + save 15%
healthy hair on your schedule
Pick your K18 + how often you want to replen.
We’ll send you a heads up before every delivery.
You’re in charge. Change the way you pay, skip a shipment, or cancel anytime.
Blackfire Tracking