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K18Molecular Repair Hair Oil

Hair oil

$27

Size 10 ml, $79.85 / fl oz

Sold by K18 Hair. Amazon's shipping and returns apply. Who sells K18 on Amazon

Amazon price as of Sep 28, 2026, 2:00 AM ET, subject to change: the price on Amazon at checkout is the one that applies. We may earn a commission; the price you pay is the same.

Garnier Fructis Sleek & Shine Anti-Frizz Serum
12 cheaper on the same shelf, from $1.37 / fl oz. See them

About the Product

What it is: Hair oil, 10 ml. Dual-action frizz control system. The perfect hair oil for frizzy hair, it targets frizz at two levels by reversing damage within the hair fiber and smoothing the cuticle surface for soft, manageable strands.

What Else You Need to Know:

  • Biotech-engineered oil for hair: Clinically proven to repair damaged hair*, our patented K18PEPTIDE formula works at the innermost layer of hair to strengthen and reverse damage that leads to frizz.
  • Lightweight + shine-enhancing: The weightless, silicone-free formula nourishes with avocado oil, sunflower oil, hemisqualane, and squalane to boost color vibrancy and increase hair shine by 104%* without buildup.
  • Heat Protection up to 450°F*: Designed to protect from heat styling tools, this hair oil heat protectant helps prevent further frizz-causing damage while reducing split ends by 78%*.
  • How to use: Start with 1-3 drops and build as needed. Apply to damp, towel-dried hair from mid-lengths to ends for repair + frizz control. Apply to dry strands as a hair finishing oil to smooth and add shine.

From the Amazon listing.

Hair dupe guides

Cheaper on the Same Shelf

Hair oil, for less per ounce on Amazon

$27

$79.85 / fl oz