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Molecular Repair Hair Oil - Smooth + Repair Damaged Hair

K18 Molecular Repair Hair Oil - Smooth + Repair Damaged Hair

%0 3.91 | 163 reviews
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from £27.00

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10ml (£2.70 per ml) £27.00In stock30ml£65.00In stock
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If you like we can let you know when we have some more.

Product 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.  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

Directions

-Designed to be used on both damp and dry hair for maximum impact. -This is a concentrated formula. Start with one to three drops and build as needed. -Apply to damp hair from mid-lengths to ends before styling. -Apply to dry hair as a finisher. -Can be used after the K18 Leave-In Molecular Repair Hair Mask (after four-minute processing time, sold separately) for enhanced softening and styling benefits.

Test results

Clinically proven to repair damaged hair(1)

24-HR frizz control(2)

104% more shine(3)

78% reduction in split ends(4)

450°F (232°C) heat protection(5)


(1) Results observed on bleached hair tress after one application of molecular repair hair oil



(2) 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



(3) Results observed after one application of molecular repair hair oil on dry hair



(4) Results observed on bleached/damaged hair after one application of molecular repair hair oil on dry hair



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





92% agreed this formula improves shine(6)

89% agreed hair looks instantly moisturized(6)

89% agreed hair feels smoother(6)

89% agreed this formula feels weightless(6)


(6) Results observed on 37 people after 14 days

Composition

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

More information

Clean at Sephora

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.

This list of ingredients may be subject to change, please consult the packaging of the product purchased.

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Rated 5 out of 5 by from expensive but worth it Great product does exactly what is says. Will re purchase!
Date published: 2025-09-11
Rated 5 out of 5 by from ........ I have coarse hair and don't usually put any styling products on it, as it makes my hair heavier and look greasy. However I decided to try something different and give this raved about product a go, because my hair has become drier as I age... I've now been using this for a couple of weeks and am delighted with the results. My hair is almost 100% frizz free, feels very silky, doesn't look lank or greasy, and feels more lightweight than usual. I've never used a serum that has worked so well on my hair before - these results were visible after the very first time that I used this elixir oil. The condition of my hair has improved so much, that now I only apply the oil every other wash; the very ends of my hair can become frizzy after styling - but there is not as much as normal for me though. The only thing I'd caution you with is that the second wash results can vary slightly. It's always given me less frizz then usual, but there is some the majority of the time.
Date published: 2025-09-11
Rated 3 out of 5 by from Nice but not amazing Nice but no better than the olaplex oil in my opinion
Date published: 2025-05-29
Rated 2 out of 5 by from 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
Date published: 2025-04-17
Rated 5 out of 5 by from Love I love it so much, you can see intant frizz reduction and shine.
Date published: 2025-03-22
Rated 5 out of 5 by from Add shine Haven’t seen much change other than shine, if that’s your goal, then this is for you
Date published: 2025-03-08
Rated 5 out of 5 by from Rehydrate dry ends Use it every day to hydrate my dry ends. Only need a tiny amount.
Date published: 2025-02-24
Rated 2 out of 5 by from Meh I bought purely because the leave in treatment was a saviour. I just don’t get the hype. I didn’t notice anything spectacular and much prefer other oils on the market. Left my hair feeling v dry
Date published: 2024-07-07
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