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Sephora Squad Must Haves Box
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Striped Book Tote
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Leave-In Repair Mask 5ml
Purchase 2 K18 products to avail the above gift
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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 vibrancyThis 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 - Directions for use
- Ingredients
- Description
- Directions for use
- Ingredients
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
Directions for Use:
-Designed to be used on both damp and dry hair for maximum impact.
-This is a highly 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.
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.
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sydcadelic
21/01/2025
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shuuuuuuyi
21/01/2025
First product from K18 I’ve used.
I’m impressed with the result, keeps my hair smooth and soft all day. I was in need of a hair oil for a while, this and the olaplex oil seems to be on same the tier for me. I’ll be sure to check out other K18 products.
Recommend this product: Yes
Originally posted on sephora.com
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BindyLindy
21/01/2025
Life Changer for my hair routine!
Recently bought this and was hesitant at first since I have thick frizzy hair. Usually it would take me 2 hours to bring it down and never looked great. However, when I used k18, not only did it take less time to straighten (30min), it looks like I just came out of the salon! Of course there's a few strays here and there but it made a HUGE difference for me and I am so happy!
Recommend this product: Yes
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MsFrufru
14/01/2025
My hair loves it.
I used this oil along w the clarifying shampoo and mask. I am in love. I thought my hair was unrepairably damaged. I used the amount suggested on each section of my hair. I love that hair is not weighed down but has a sheen. We'll worth every dollar spent. This product helped bring my hair back to life.
Recommend this product: Yes
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slathermonkey
12/01/2025
Forever Repurchasing
Worth every penny. Will last longer than you think. Use (sparingly) on damp hair and as a finisher. I will forever repurchase.
Recommend this product: Yes
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itsbribri
10/01/2025
A little goes a long way!
I purchased the mini size of this hair oil to try it out before buying the full size and I loved it. The mini lasted me for so long since a little goes a long way. My hair health is clearly improving so I will definitely be purchasing the full size!bebebpurchasing thehe
Recommend this product: Yes
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Trustaribeauty
08/01/2025
Go ahead and splurge
I was shocked by the results ! If you want to repair any damage like split ends.. this is the product you should invest in!
Recommend this product: Yes
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chumps0329
02/01/2025
Use for shiny, frizz free hair
After using this product on a few occasions I have to say that it is a new staple in my hair care routine. A little goes a long way so the small bottle lasts quite a long time despite my long hair. My hair was shiny and frizz free.
Recommend this product: Yes
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18/12/2024
Only hair oil that doesn't weigh down my curls!
Wowwww! Little goes a very long way with this product. I have seen a noticeable difference within one use. I would buy this product all over again. k18 is the way to go!
Recommend this product: Yes
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Yelena12
16/12/2024
Noticeable results.
I used the oil after my K18 mask, and you truly see a difference. My hair looks healthy and shiny. Start lightly with it as it's a heavier oil. A little goes a long way!
Recommend this product: Yes
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Mxsotelo
11/12/2024
Unfortunately, for my hair, this oil did nothing other than make it dry and kind of rough too. Didn’t add any shine or softness. Could just be that my hair in particular didn’t react well to it though. My hair reacts better to the Olaplex oil. Plex oil.
Originally posted on sephora.com
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Shalot
04/12/2024
My hair is the healthiest it’s ever been. I am black with relaxed hair. This oil has increased moisture and shine in my hair. I can’t live without it.
Recommend this product: Yes
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mandyb8
03/12/2024
HOLY GRAIL
My hairdresser put me on to k18 bc she told me it’s the best thing you can put on your hair. I’ve been using the shampoo/conditioner and mask for months but just tried this little baby and WOW!!!! My hair looks and feels like I just got out of the salon chair. Cannot recommend enough!
Recommend this product: Yes
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Hollz9000
03/12/2024
Not Impressed
Somehow this made my hair extra frizzy with the texture of straw.
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K18 offers a unique scientific approach to hair care, based on biotechnology. The products' clinically proven effectiveness is based on K18PEPTIDE™ technology, which repairs damage at the molecular level for all hair types (the result of bleaching, chemicals and heat). Born in hair salons, this technology allows you to express your creativity without fear of damage!
k18
Molecular Repair Hair Oil
Disappointing
I wanted to love this! The leave in treatment has done wonders for my hair but I found this oil did absolutely nothing? I much prefer the Gisou hair oil.
Originally posted on sephora.com