Name: *K18 molecular Repair Hair Oil 30ml
Brand: K18 Australia
SKU: K1832011
Price: 94.95 AUD
Availability: InStock

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*K18 molecular Repair Hair Oil 30ml

Weightless oil that strengthens, repairs damage + reduces frizz

$94.95

repair damage

smooth + strengthen

vegan & cruelty free

peptide powered

free shipping over $50

pairs well with

what makes it different

K18 Molecular Repair Oil NEW! - K18 Australia

This biotech-engineered, weightless oil works across all hair types to strengthen, repair damage, fight frizz at two levels of the hair fiber, and boost shine.

Clinically proven results:

Repairs damage
24-hour frizz control
104% more shine
78% fewer split ends
Heat protection up to 450°F / 232°C

Apply to damp, towel-dried hair before styling, or on dry hair as a finishing touch. This highly concentrated formula requires just 1–3 drops to start — build as needed.

Use on damp hair to:

K18PEPTIDE™ benefits
Reduce frizz during air-drying or styling

Use on dry hair to:

Smooth frizz and flyaways
Add shine as a finisher

Application tips:

On damp hair, ply from mid-lengths to ends. For maximum strengthening, wait 4 minutes before styling.
On dry hair, apply as a finisher.

Pro Tip:
If using the K18 molecular repair mask, apply the mask first on clean, damp hair and wait 4 minutes. Then apply the molecular repair hair oil and wait another 4 minutes for optimal strengthening results.

This silicone-free oil fights frizz differently by targeting the root cause — repairing damage — and instantly smoothing frizz and flyaways.

Reverses frizz-causing damage: Works at the molecular level to repair weakened hair, reducing its susceptibility to frizz.
Reduces frizz and flyaways: Natural oils smooth the cuticle and soften hair without weighing it down.
Enhances shine and colour vibrancy: Nourished, moisturised hair reflects more light and boosts colour depth.
Delivers heat protection: Shields hair from heat damage up to 450°F (232°C), helping prevent further frizz.

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.

This strengthening, smoothing hair oil fights frizz on two levels of the hair fibre.

K18PEPTIDE™ targets deeper damage at the innermost layer, repairing and strengthening hair to reverse frizz at its source.

On the hair’s surface, natural oils like avocado and sunflower, along with hemisqualane and squalane, nourish and smooth frizz and flyaways—boosting colour vibrancy, enhancing shine, and providing heat protection up to 450°F (232°C).

Clinically proven to repair damaged hair.*
24-HR frizz control*
104% increase in shine*
78% reduction in split ends*
450°F (232°C) heat protection*

*k18hair.com/disclaimers

Get started here

got a question?

For maximum molecular repair and styling benefits, we recommend using the oil alongside the mask. Think of the mask as your damage repair treatment post-wash, while the oil smooths, styles, and strengthens hair afterward. The oil can be applied to both damp and dry hair.

Yes, this oil provides heat protection up to 450°F/232°C.

No, this oil won’t cause buildup or weigh hair down. Its weightless, highly concentrated formula targets frizz-causing damage at the molecular level inside the hair fibre, while natural oils smooth the surface without heaviness.

You only need 1–3 drops to see results—start small and build as needed. If buildup is a concern, use our detox shampoo to remove 99% of product residue after just one wash*.
*k18hair.com/disclaimers

No, the mask will not block the molecular repair hair oil from penetrating. The mask is a highly concentrated treatment without any fillers so it won’t block the oil from penetrating. Like layering different skincare products, the oil can be layered on top of the mask without impacting its performance.

Instead of mixing the oil and mask together, get the most effective repair and styling benefits by using the mask first, waiting 4 minutes, and then applying the oil.