K18 Molecular Repair Hair Oil Review | SkinSourcer
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The Shelf · Hair · Surface Tension: Treatments That Work Inside the Hair, and the Ones That Only Coat It

K18 Molecular Repair Hair Oil
No. 03 in Edit 031

K18 Molecular Repair Hair Oil

Treatments USA Approx. $65

A hair oil with no silicone in it at all, built on squalane and avocado instead. That is unusual enough in this category to be the reason to buy it.

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Why we like the Molecular Repair Hair Oil

  • Silicone free, which almost no shine oil is
  • Does not build up over a week
  • Two drops is the whole dose
  • Scented, with hexyl cinnamal, limonene and linalool declared
Texture
Dry oil, no silicone weight
Key ingredients
Squalane · Persea Gratissima (Avocado) Oil · Helianthus Annuus (Sunflower) Oil · Caprylyl Caprylate/Caprate
Fragrance
Scented. Parfum plus declared hexyl cinnamal, limonene and linalool.
Best for
Fine hair that oils usually flatten · Ends only
Works on
Frizz · Dullness · Split ends
Made in
USA
Where to buy
Amazon
Price
$65, approximate
Listing checked
2026-08-12

Our verdict on the K18 Molecular Repair Hair Oil

Two drops, ends only, and it is silicone free where almost no shine oil is.

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Where the Molecular Repair Hair Oil sits on The Shelf

Surface Tension: Treatments That Work Inside the Hair, and the Ones That Only Coat It Edit 031 · SURFACE TENSION Surface Tension: Treatments That Work Inside the Hair, and the Ones That Only Coat It Which treatments work inside the hair, which only smooth the outside, and why the difference is worth knowing before you spend seventy five dollars.

The rest of Surface Tension: Treatments That Work Inside the Hair, and the Ones That Only Coat It

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Reviewed 2026-08-12. K18 Molecular Repair Hair Oil appears in Surface Tension: Treatments That Work Inside the Hair, and the Ones That Only Coat It. Every product on The Shelf is listed in the product index.