Free Standard Shipping on $125+ Orders
free returns. buy with confidence

molecular repair hair oil

Weightless oil that strengthens, repairs damage + reduces frizz
Rated 4.8 out of 5
Based on 208 reviews
30 mL

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

Professional Only

Log In / REGISTER

Every purchase supports K18 x Plastic Bank efforts to radically simplify waste.
In 2022 we stopped 147 Metric tons of plastic
=
7.3M+ single-use plastic bottles from reaching the ocean

more to know

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

key benefits

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 450°F (232°C)

how to use in the salon

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

For Stylist Use

Begin with PRO chelating hair complex:

  1. Section dry hair into 4 quadrants.
  2. Apply 6-10 sprays of K18 pro chelating hair complex per quadrant*.
  3. Wait 4 minutes after chelating (do not rinse out)

Apply the PRO molecular repair hair mist:

  1. Apply a minimum of 10 full sprays of K18 professional molecular repair hair mist to each quadrant, increasing up to 20 sprays per quadrant as needed, depending on client’s length, density, and level of damage.
  2. Wait 4 minutes (do not rinse out). If needed, dry the hair prior to applying lightener or color. Then perform your desired technique.

Apply the PRO molecular repair hair mask:

  1. Shampoo (do not condition) and towel dry thoroughly.
  2. Apply 1-3 pumps of K18 professional molecular repair hair mask based on your client’s 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 K18 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 K18 molecular repair hair oil to dry hair as a finisher.

*For cases of extreme metal + mineral buildup, process up to 10 minutes, then proceed with the instructions.

**For best results, we recommend to use K18 chelator before every service. If not using K18 chelator, lightly dampen hair with water (do not saturate) before applying K18 PRO mist.

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.

for client use

Highly concentrated formula. Start with 1-3 drops and build as needed.

  • 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 - Got the K18 molecular repair mask? Use 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.

ingredients

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
K18 molecular repair service (WHOLESALE)K18 molecular repair service (WHOLESALE)

K18 molecular repair service

Rated 4.9 out of 5
Based on 1577 reviews
2-step PRO mist + mask service reverses damage in 4 minutes View K18 molecular repair service (WHOLESALE) product Log In / REGISTER

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.

the science behind molecular repair

This K18PEPTIDE™-powered oil fights frizz differently for long-term frizz prevention and immediate control.

how to use + sell it

  • how to use
  • how to sell the oil to clients
PRO stylist + educator Carly Zanoni shows you how to use the molecular repair hair oil to strengthen and smooth your hair + your client’s.
PRO stylist + educator Eric Vaughn chats his favorite things about the molecular repair hair oil + why every client needs it.

plays well with others

The molecular repair hair oil works on its own and can be paired with the molecular repair service.
what's the difference?
Think of the molecular repair service as damage repair treatments used before and after services. The oil is for smoothing, styling, and strengthening after the mask, and can be used on damp and dry hair.
why wouldn't I just use the oil?
We recommend using the oil with the molecular repair service to get maximum molecular repair results with additional styling benefits.
when would I use both?
Use the molecular repair service pre and post-salon service to reverse hair damage in 4 minutes. You can layer the oil on top of the mask after the 4-minute processing time for additional frizz-reducing, styling, and heat-protecting properties.
shopping with us has its perks

exclusive tools

Get access to monthly live training, professional education, and business guides.

free shipping on $125+ orders

Shop K18 at professional wholesale pricing (no order minimums here).

real support

We have K18 experts on standby to answer allll your product and order questions.

got questions?

Get started here.

Does the molecular repair hair oil work on all hair types?

Yes, the molecular repair hair oil works on all hair types.

Does the molecular repair hair oil provide heat protection?

Yes, this oil provides heat protection up to 450°F/232°C.

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 that would block the oil from penetrating. Like layering different skincare products, the oil can be layered on top of the mask without impacting its performance.

Will the molecular repair hair oil leave buildup or weigh down hair?

No, it will not leave buildup or weigh down 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 or your clients are concerned about buildup, use our detox shampoo to remove 99% of product buildup after just 1 wash*.
*Disclaimers

Can I mix the oil and mask together?

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.
reviews
average rating 4.8 out of 5
Based on 208 reviews
  • 5 Stars
    179 Reviews
  • 4 Stars
    19 Reviews
  • 3 Stars
    5 Reviews
  • 2 Stars
    3 Reviews
  • 1 Star
    2 Reviews
95% of reviewers would recommend this product to a friend
Customer photos and videos
208 Reviews
Reviewed by Michelle R L.
Verified Buyer
I recommend this product
Age
45 - 54
Hair Concern
  • Chemical damage
  • Heat damage
  • Frizz
  • Fragile/brittle hair
  • Split-Ends
Hair Type
  • Straight/Wavy
My Results
  • Less Frizz
  • Visible Difference
  • Stronger Hair
  • Less Breakage
  • Defined Curl/Wave Pattern
Rated 5 out of 5
Review posted

Love it!❤️

I’ve been using K18 for a week and I love it. My hair was so damaged from coloring and heat, it was awful. I have also lost 77 lbs and my hair been falling on ridiculously. My hair is in better shape now than it’s been in years, plus I have had very, very little to no hair loss since the second day of using K18. It’s definitely worth it!!! Best thing I’ve ever tried on my hair and I’ve tried a lot of expensive and good name brand products, but K18 knocks them all out of the water.

Loading...
Was this helpful?

K18Hair PRO

❤️! Looking amazing! Thank you for your review Michelle!

Reviewed by Ana o.
Verified Buyer
I recommend this product
Age
45 - 54
Rated 5 out of 5
Review posted

I love it.

I love it.

Loading...
Was this helpful?

K18Hair PRO

💛! Thank you Ana!

Reviewed by Leticia S.
Verified Buyer
mini molecular repair hair oil
Reviewing
mini molecular repair hair oil
I recommend this product
Age
25 - 34
Hair Concern
  • Heat damage
  • Dryness
  • Split-Ends
  • Frizz
  • Fragile/brittle hair
Hair Type
  • Fine/Thin
My Results
  • Less Frizz
  • Visible Difference
  • Less Breakage
  • Shinier Hair
Rated 5 out of 5
Review posted

Very good!

Is has helped my hair by reducing frizz and breakage. It looks more shiny than before.

Loading...
Was this helpful?

K18Hair PRO

Thank you Leticia! Enjoy your shiny frizz free hair.

Reviewed by Ronnie
I don't recommend this product
Age
18 - 24
Hair Concern
  • Chemical damage
Hair Type
  • Fine/Thin
My Results
  • Less Frizz
Rated 1 out of 5
Review posted

Didn’t like it

I really wanted to love this product however it didn’t work for me :( made my hair very oily and weighted down .

Loading...
Was this helpful?

K18Hair PRO

We are sorry to hear you do not love your results. You can reach out to us at Hello@K18hair.com to troubleshoot if you'd like.

Reviewed by Abeer A.
Verified Buyer
I recommend this product
Age
35 - 44
Hair Concern
  • Chemical damage
Hair Type
  • Medium Density
My Results
  • Less Frizz
  • Shinier Hair
Rated 5 out of 5
Review posted

LOVE K18

First I fell in love with the hair mask I started telling everyone about it and convinced most salons to bring it in my city. Then decided to try the professional mist I bought it so I can take it with me where I color my hair and it helps ALOT.

For me k18 mask works best if I wait 4 minutes then apply hair conditioner and rinse with water only. So when k18 brought on the oil decided to try it.

I feel like it adds more shine. But I have a question for the team. Can I apply the oil after hair conditioner ? Or it has ti be applied just like he mask? Any tips on this product will help thank you

Loading...
Was this helpful?

K18Hair PRO

Thank you for your review! Yes you can use after conditioner on wet or dry hair. Reach out with any questions to Hello@K18Hair.com

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
Blackfire Tracking
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.