Molecular Repair Hair Oil

Molecular Repair Hair Oil is rated 4.6 out of 5 by 177.
  • y_2026, m_6, d_7, h_12
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.46
  • cp_3, bvpage2n
  • co_hasreviews, tv_88, tr_89
  • loc_en_US, sid_k18-molecular-repair-hair-oil, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_saloncentric
  • bvseo_sdk, dw_cartridge, 17.1.0, p_sdk_3.2.0
  • CLOUD, getAggregateRating, 49ms
  • reviews, product
Select Size
Available options to select
1 oz.
#PP081573
Auto Replenish:
FREE SHIPPING OVER $50 & EARN 100 PROREWARDS POINTS
  • Choose your frequency. Skip or cancel anytime.
  • Free shipping over $50* & 100 ProRewards Points++ on all recurring orders.
  • Select auto-delivery in cart.
  • Exclusions apply.
Learn More

What It Is

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.

What It Does

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)

What Else You Need 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*****

 

*Results observed on bleached hair tress after one application of molecular repair hair oil

** Results observed on curly, frizzy hair after 24 hours in 80% relative humidity, with one application of molecular repair hair oil on dry or damp hair

***Results observed after one application of molecular repair hair oil on dry hair

****Results observed on bleached/damaged hair after one application of molecular repair hair oil on dry hair

*****Results observed after one application of molecular repair hair oil and application of 450 degree flat iron on dry hair

1. 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.

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

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

 

For Stylist Use

Begin with PRO molecular repair hair mist:

1. Mist dry hair with water (do not saturate).

2. Section hair into 4 quadrants.

3. For 300ml PRO mist, apply 4-9 sprays per quadrant. For 150ml PRO mist, apply 6-12 sprays per quadrant based on hair length and density. Hair should feel slightly damp.

4. Let sit for 4 minutes (do not rinse out).

5. Dry hair if needed, then perform color or lightening service and process as usual.

 

Apply the PRO molecular repair hair mask:

1.Shampoo (do not condition) and towel dry thoroughly.

2.Apply 1-3 pumps of K18 PRO mask, depending on length, thickness, and condition. Work evenly into hair from ends to roots, one pump at a time.

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.

 

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.

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.

Purchases made in SalonCentric stores may be returned to any SalonCentric store. Purchases made through SalonCentric Customer Service, SalonCentric Business Partners, and SalonCentric.com orders Sold and Shipped by SalonCentric may be returned to a SalonCentric store; however, the return must not exceed $450 and must include the original receipt, packing slip, or invoice. For returns in-store of online orders, the refund will be credited back to the original payment method once the return has been processed. For SalonCentric.com Online Exclusive orders sold and shipped by third-party sellers, please see more details linked below for return steps.

The SalonCentric return policy does not currently apply to Kérastase & Shu Uemura purchases. Kérastase & Shu Uemura do not accept returns.

Click to see more details.

Rated 5 out of 5 by from AMAZING!! Amazing!! Love this oil so much it makes me ends so soft!!
Date published: 2024-10-28
Rated 5 out of 5 by from Impressed I have curly hair and have struggled with getting a smooth sleek blowout or straightening my hair without it looking frizzy or smooth. An associate recommended to try this oil and it does everything a little goes a long way. Pairing it with olaplex 6 or the K18 leave in mask for better results.
Date published: 2024-10-23
Rated 5 out of 5 by from great oil! i love this oil so much n i love the wy K18 makes my hair smell.
Date published: 2024-09-10
Rated 5 out of 5 by from Good product You don’t get instant results but they definetly do come
Date published: 2024-09-07
Rated 5 out of 5 by from K18 repair oil client preferred K18 repair oil is amazingly lightweight, adding shine to see the instant effects of repair. Use on all hair types.
Date published: 2024-08-30
Rated 5 out of 5 by from Great oil I have tried multiple hair oils and k18 In my honest opinion is one of my favorites. I keep the mini one in my purse it helps tame my frizzy hair
Date published: 2024-08-23
Rated 5 out of 5 by from Just buy it. Love this oil. Has literally turned my hair around.
Date published: 2024-08-15
Rated 5 out of 5 by from All Time Favorite Hair Oil I absolutely love this oil. I have curly hair and have a lot of breakage. Out of all the oils I've tried this is definitely my favorite. It's not too greasy and leaves my hair very soft and healthy looking!
Date published: 2024-08-02
Rated 5 out of 5 by from What a surprise Absolutely amazing! I love results I’m getting from this formula.
Date published: 2024-07-31
Rated 1 out of 5 by from 👎🏼 I don’t see or feel the benefits on my own hair and my clients hair
Date published: 2024-07-18
Rated 5 out of 5 by from brought my hair back to life! used this in combo with k18 hair mask and it has been a night and day difference! brought shine, my curl pattern, and nearly erased my frizz! so happy with my hair after it was dull, dry and frizzy from over processed lightner application!
Date published: 2024-07-06
Rated 5 out of 5 by from Love love love! Instantly felt results! Not so heavy on the hair which is great for straight hair. Using it as a heat protectant as well
Date published: 2024-07-03
Rated 5 out of 5 by from anti frizz! I have super dry hair and it frizz’s up this has helped so much
Date published: 2024-06-29
Rated 5 out of 5 by from Best little bottle of magic My hair has never felt and looked better. I use this oil in conjunction with the leave in mask and the damage shield shampoo. A little goes a long way that’s for sure almost like liquid gold because of how expensive it is, but after I have freshly washed my hair and I’ve got the hair mask in it and some of this oil and my hair is nice and dry. It’s so soft and I bleach my hair, I have a shadow root with foliage. So my hair has taken a beating!
Date published: 2024-06-23
Rated 5 out of 5 by from love Blonde straight bleached hair, amazing for smoothing it out, heat protection
Date published: 2024-06-12
Rated 5 out of 5 by from So good! I over processed my hair doing a color correction and this has been so healing for my hair!
Date published: 2024-06-08
Rated 5 out of 5 by from amazing I can't keep this stuff on the shelves. The stuff is amazing.
Date published: 2024-06-04
Rated 5 out of 5 by from New go to for the longest time I was using olaplex 7 bonding oil. I decided to give this a go and first use I noticed a difference! I will definitely be repurchasing!
Date published: 2024-06-04
Rated 5 out of 5 by from Amazing Amazing product. I feel the instant difference once I use the product after washing my hair.
Date published: 2024-05-13
Rated 5 out of 5 by from amazing repair oil! I love this oil! So lightweight! Fights frizz and has heat protection! Love this product!
Date published: 2024-05-02
Rated 5 out of 5 by from Worth every penny I have tried every hair oil under the sun.This is by far the best! I have fine color treated hair with highlights and need a hair oil that hydrates, protects from heat damage, and does not weigh my very fine hair down. This does it all. Don't hesitate to buy this!
Date published: 2024-04-28
Rated 5 out of 5 by from Miracle oil My clients love the way this product leaves their hair feeling soft and healthy.
Date published: 2024-04-16
Rated 5 out of 5 by from AMAZING! I use this on damp towel dried hair and I love it. Leaves my hair silky smooth and shiny!
Date published: 2024-04-11
Rated 5 out of 5 by from LOVE! I have really enjoyed using this on my own hair and can really tell a difference when I use it and when I don’t.
Date published: 2024-04-04
Rated 5 out of 5 by from Wow! Game Changer!! This is the best oil and it's so lightweight!
Date published: 2024-04-02
Rated 5 out of 5 by from the best hair oil ever. This hair oil is amazing! It is a heat protectant, and leaves hair so amazingly soft. Works well for thick and thin hair, as well for curly or straight hair.
Date published: 2024-02-23
Rated 5 out of 5 by from Great It’s not a super heavy oil which I like and makes my hair feel super soft. Love putting it on after the leave in.
Date published: 2024-02-08
Rated 5 out of 5 by from Great oil! [Employee of saloncentric] Loving this hair oil. I prefer to use it on wet hair before I blow dry.
Date published: 2024-02-01
Rated 4 out of 5 by from Great shine! So this oil adds softness and shine to hair. Can be used or wet or dry hair. Works really well for thick, curly hair.
Date published: 2024-01-19
Rated 5 out of 5 by from K18 Oil This k18 Oil is lovely! It does not weigh your hair down, just don't use too much. "A little dab'll do ya!" This product does not leave your hair feeling greasy, oily or heavy. Rub a small amount between your hands and distribute throughout your hair evenly, focusing mainly on the ends. I received this product for free from Influenster and K18 in exchange for my honest review.
Date published: 2024-01-05
  • y_2026, m_6, d_7, h_12
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.46
  • cp_3, bvpage2n
  • co_hasreviews, tv_88, tr_89
  • loc_en_US, sid_k18-molecular-repair-hair-oil, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_saloncentric
  • bvseo_sdk, dw_cartridge, 17.1.0, p_sdk_3.2.0
  • CLOUD, getReviews, 10ms
  • reviews, product