K18 Molecular Repair Hair Oil 30ml is a biotech-engineered, weightless hair oil designed to strengthen damaged hair and tame persistent frizz across all hair types. It works within the hair fibre while enhancing shine, colour vibrancy and smoothness. K18 reports clinically proven damage repair, 24-hour frizz control and a 104% increase in shine. Suitable for dry, dull, colour-treated or heat-styled hair, this silicone-free formula helps reduce split ends by up to 78% and protects against heat up to 232°C, supporting healthier-looking, more resilient hair over time.

Key Features

• Clinically proven repair: Biotech formula with K18PEPTIDE™ addresses deeper-level damage that contributes to frizz and weakness.
• Long-lasting frizz control: Delivers 24-hour frizz control, smoother texture and fewer flyaways without weighing hair down.
• Enhanced shine and protection: Boosts shine by 104%, reduces split ends by 78% and offers heat protection up to 232°C.

How does K18 Molecular Repair Hair Oil differ from regular hair oils?

K18 Molecular Repair Hair Oil uses biotech-engineered K18PEPTIDE™ to address damage within the innermost layer of the hair, going beyond standard surface-smoothing oils. Alongside sunflower oil, avocado oil, hemisqualane and squalane, it provides damage repair, frizz control and shine without silicones or heavy residue, making it suitable for strengthening as well as daily styling.

Is K18 Molecular Repair Hair Oil suitable for all hair types, including fine or colour-treated hair?

The formula is designed to work on all hair types, from fine to coarse and straight to curly, and is suitable for damaged or colour-treated hair. Its lightweight, silicone-free texture helps minimise build-up, allowing fine hair to benefit from improved smoothness and shine without being weighed down.

What results can I expect from consistent use?

K18 reports that one use provides clinically proven damage repair, up to 24-hour frizz control, a 104% increase in shine and a 78% reduction in split ends. Results can vary depending on hair type, condition and how the product is used.

Is K18 Molecular Repair Hair Oil free from silicones or animal testing?

K18 Molecular Repair Hair Oil is silicone-free. K18 is also certified cruelty free under the Leaping Bunny programme.