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K18 Molecular Repair Hair Oil

$35.75$65.00

White and yellow K18 hair oil bottle with dropper cap, 30 ml / 1 fl oz, on white

K18 Molecular Repair Hair Oil

$35.75$65.0045% off
  • Start with 1 to 3 drops
  • Smooths frizz and flyaways
  • Heat protection up to 450°F
  • Weightless, silicone-free formula
  • Avocado oil, sunflower oil, squalane

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Repair oil for frizz and shine

Frizz control that starts inside the strand

K18's weightless, silicone-free oil works on two levels of the hair fiber. The patented K18PEPTIDE repairs and strengthens damage deep inside, while natural oils and squalane smooth frizz and flyaways on the surface and add shine.

Repair at the innermost layer

Damaged hair is more prone to frizz. The K18PEPTIDE works at the molecular level on that deeper damage, repairing and strengthening the innermost layer of the hair, which K18 says reverses the damage that leads to frizz.

Smoothing on the surface

Avocado and sunflower oils, hemisqualane and squalane nourish the surface of the hair, smooth the cuticle and soften without weighing hair down, which improves shine and color vibrancy.

Heat protection included

The formula protects hair from heat up to 450°F (232°C), helping prevent further frizz-causing damage when you blow-dry or use hot tools. It is highly concentrated, so a few drops go a long way.

K18 Molecular Repair Hair Oil, closer in

How to use

1 to 3 drops, damp or dry

Apply 1 to 3 drops to towel-dried hair from the mid-lengths to the ends, then wait 4 minutes before styling for the strengthening benefits of the K18PEPTIDE. On dry hair, smooth 1 to 3 drops over the lengths as a finisher.

  • Build up drop by drop as needed.
  • After the K18 mask, wait 4 minutes.
  • On dry hair to tame flyaways.
Does it provide heat protection?

Yes. K18 says the oil protects hair from heat up to 450°F (232°C).

How much should I use?

Very little. The formula is highly concentrated, so K18 recommends starting with 1 to 3 drops and building as needed.

Do I apply it to damp or dry hair?

Both. On damp, towel-dried hair it gives strengthening benefits and reduces frizz as you air-dry or style; wait 4 minutes before styling. On dry hair it smooths frizz and flyaways and adds shine as a finisher.

Will it weigh down my hair or leave buildup?

No, according to K18. It is a weightless oil, and because the formula is concentrated you only need a few drops.

Can I use it with the K18 mask?

Yes. K18 recommends applying the mask first on clean, damp hair and waiting 4 minutes, then applying the oil and waiting another 4 minutes. Use them one after the other instead of mixing them.

Which hair types is it for?

K18 says the oil works on all hair types.

Does it contain silicone?

No. It is a silicone-free oil. Its key ingredients are the K18PEPTIDE, avocado oil, sunflower oil, hemisqualane and squalane.

Can I return it once opened?

Opened hair care can't be resold, so it is returnable only if it arrived damaged or was the wrong item. Sealed and unopened, you have 30 days from delivery to start a return.

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The whole sheet

  • Volume30 ml
  • Key ingredientsK18PEPTIDE, Avocado oil, Sunflower oil, Hemisqualane, Squalane
  • Hair typeAll hair types
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