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K18

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Molecular Repair Hair Oil

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.

Reverses damage caused by frizz
Smooths frizz and flyaways
Enhances shine and color vibrancy

This 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 the hair fiber to reverse damage that leads to frizz.

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

Clinical Results:
In a 3rd party clinical study, one use of the K18 Molecular Repair Hair Oil delivered:

- 24-hour frizz control*
- 104% improvement in shine**
- 78% reduction in split ends***

*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 a single 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

- K18PEPTIDE™ reverses hair damage that causes frizz, promotes strength and smoothness. Hemisqualane and Squalane reinforce hair's moisture barrier, smooth flyaways, enhance shine.
- Avocado Oil provides heat protection up to 450°F (232°C).
- This product is vegan and cruelty-free.
- Fragrance Description: Fresh floral scent

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K18

Molecular Repair Hair Oil

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K18 - Brand Highlight - PDP

K18 Biomimetic Hairscience

Get hair like new* with K18's biology-first haircare, designed to make the impossible possible.

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Reviews

4.5

1,071 Reviews

5

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847

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Recent Reviews

Sabah

Verified Buyer

2

4/17/2025

Not sure

Used it a few times, not sure it’s doing anything not noticed a difference yet but love their leave in mask that works like magic

Originally posted on Sephora-uk

NeutralMoments

5

4/17/2025

Great to add to your hair

I had breakage and my hair was thinned out on the ends from over heat styling on top of bleaching. This stuff saved my hair along with the shampoo and the leave in conditioner. Never had this type of oil that can do this to my hair.

Recommended

Originally posted on sephora.com

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