Best for: All hair types that need damage repair, strengthening, frizz control, smoother flyaways, enhanced shine and heat protection in a 10ml mini size.

What is K18 Mini Molecular Repair Hair Oil?

K18 Mini Molecular Repair Hair Oil is a biotech-engineered, weightless hair oil designed to strengthen, repair damage and reduce frizz at two levels of the hair fibre while improving shine.

Powered by K18PEPTIDE™, the silicone-free formula addresses deeper-level damage that causes frizz, while natural oils work on the surface of the hair to smooth frizz and flyaways.

The highly concentrated formula also provides heat protection up to 232°C and can be used on both damp and dry hair.

Who is it best for?

K18 Mini Molecular Repair Hair Oil may suit you if your hair:

• is damaged
• is prone to frizz
• has flyaways
• has split ends
• looks dull and needs more shine
• needs strengthening
• is exposed to heat styling
• needs smoothing without being weighed down
• needs a highly concentrated hair oil that can be used on damp or dry hair

K18 states that Molecular Repair Hair Oil works on all hair types.

What problem does it solve?

K18 Molecular Repair Hair Oil targets frizz at two levels of the hair fibre rather than only smoothing the surface.

At the deeper level, K18PEPTIDE™ works to address damage that causes frizz by repairing and strengthening damage at the innermost layer of the hair.

On the surface, natural oils including avocado oil and sunflower oil, alongside hemisqualane and squalane, nourish the hair while smoothing frizz and flyaways. This helps improve colour vibrancy, enhance shine and provide heat protection up to 232°C.

K18 states that the formula provides clinically proven damage repair, 24-hour frizz control, 104% more shine and a 78% reduction in split ends.

Key ingredients & technology

K18PEPTIDE™: Works at the molecular level to address deeper-level damage that causes frizz, repairing and strengthening damage at the innermost layer of the hair.

Avocado Oil + Sunflower Oil: Natural oils that work on the surface of the hair to nourish while helping smooth frizz and flyaways.

Hemisqualane + Squalane: Work alongside the natural oils on the surface of the hair to smooth and nourish.

Ingredients

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.

How to use K18 Mini Molecular Repair Hair Oil

K18 Molecular Repair Hair Oil is highly concentrated. Start with 1–3 drops and build as needed.

On damp hair: Apply 1–3 drops to towel-dried hair from the mid-lengths to ends. For strengthening benefits from K18PEPTIDE™, wait 4 minutes before styling.

On dry hair: Apply 1–3 drops as a finishing product to smooth frizz and flyaways and add shine.

If you're also using K18 Leave-In Molecular Repair Hair Mask, apply the mask first to clean, damp hair and wait 4 minutes. Then apply Molecular Repair Hair Oil and wait another 4 minutes for maximum strengthening results.

Why choose it?

Hair type: All hair types
Primary concerns: Damage + frizz + flyaways
Best for: Strengthening + smoothing + shine + heat protection
Key technology: K18PEPTIDE™
Key oils: Avocado oil + sunflower oil + hemisqualane + squalane
Formula: Silicone-free + weightless + highly concentrated
Frizz control: 24 hours
Shine: 104% more shine
Split ends: 78% reduction in split ends
Heat protection: Up to 232°C
Use on: Damp + dry hair
Size: 10ml Mini
Routine step: Strengthen + smooth + finish
Brand: K18

Millies Expert Advice

K18 Molecular Repair Hair Oil is highly concentrated, so start with just 1–3 drops and build only as needed. Apply from the mid-lengths to ends on towel-dried hair for strengthening and frizz-reducing benefits, or use on dry hair as a finishing step to smooth flyaways and add shine.

If you're using it alongside the K18 Leave-In Molecular Repair Hair Mask, apply the mask first and wait 4 minutes before applying the oil.

Is K18 Mini Molecular Repair Hair Oil right for me?

Choose this if: you want a weightless, silicone-free hair oil for all hair types that combines damage repair and strengthening with frizz control, smoothing, shine and heat protection up to 232°C.

Consider another product if: you're specifically looking for K18's dedicated post-shampoo damage repair treatment. K18 recommends using Molecular Repair Hair Oil alongside the Leave-In Molecular Repair Hair Mask for maximum molecular repair with additional styling benefits.

Frequently asked questions

What does K18 Mini Molecular Repair Hair Oil do?

K18 Molecular Repair Hair Oil is designed to strengthen, repair damage and reduce frizz while improving shine. It works at two levels of the hair fibre, addressing deeper-level damage while smoothing frizz and flyaways on the surface.

Is K18 Molecular Repair Hair Oil suitable for all hair types?

Yes. K18 states that Molecular Repair Hair Oil works on all hair types.

Is the K18 Molecular Repair Hair Oil 10ml a mini size?

Yes. K18 identifies the 10ml version as its Mini Molecular Repair Hair Oil. The full-size version contains 30ml.

Does K18 Molecular Repair Hair Oil help with frizz?

Yes. K18 states that the oil provides 24-hour frizz control. K18PEPTIDE™ addresses deeper-level damage associated with frizz, while natural oils smooth frizz and flyaways on the surface.

Does K18 Molecular Repair Hair Oil repair damaged hair?

K18 states that Molecular Repair Hair Oil is clinically proven to repair damaged hair. K18PEPTIDE™ works at the molecular level to repair and strengthen deeper-level damage.

Does K18 Molecular Repair Hair Oil help with split ends?

K18 reports a 78% reduction in split ends.

Does K18 Molecular Repair Hair Oil add shine?

Yes. K18 reports 104% more shine and states that the oil helps enhance shine and colour vibrancy.

Does K18 Molecular Repair Hair Oil provide heat protection?

Yes. K18 Molecular Repair Hair Oil provides heat protection up to 232°C.

Can I use K18 Molecular Repair Hair Oil on damp hair?

Yes. Apply 1–3 drops to towel-dried hair from the mid-lengths to ends. For strengthening benefits from K18PEPTIDE™, wait 4 minutes before styling.

Can I use K18 Molecular Repair Hair Oil on dry hair?

Yes. Apply 1–3 drops to dry hair as a finishing product to smooth frizz and flyaways and add shine.

How much K18 Molecular Repair Hair Oil should I use?

K18 recommends starting with 1–3 drops and building as needed because the formula is highly concentrated.

Will K18 Molecular Repair Hair Oil weigh my hair down?

K18 states that the weightless oil smooths and softens without weighing the hair down and does not leave buildup.

Is K18 Molecular Repair Hair Oil silicone-free?

Yes. K18 describes Molecular Repair Hair Oil as a silicone-free oil.

Can I use K18 Molecular Repair Hair Oil instead of the K18 Hair Mask?

K18 recommends using the oil with the mask for maximum molecular repair and additional styling benefits. The mask is positioned as the damage repair treatment used after washing, while the oil provides smoothing, styling and strengthening benefits afterwards.

Can I use K18 Molecular Repair Hair Oil with the K18 Hair Mask?

Yes. Apply the mask to clean, damp hair first and wait 4 minutes. Then apply the Molecular Repair Hair Oil. K18 recommends waiting another 4 minutes for maximum strengthening results.

Can I mix K18 Molecular Repair Hair Oil with the K18 Hair Mask?

K18 recommends layering rather than mixing them. Apply the mask first, wait 4 minutes and then apply the oil.