K18 Leave-In Molecular Repair Hair Mask – 150 ml / 5 fl oz

Give damaged hair a simpler care routine with K18 Leave-In Molecular Repair Hair Mask. This lightweight, no-rinse treatment works in 4 minutes to help restore softness, smoothness, strength and bounce to hair affected by bleach, color, chemical services and heat styling.

The 150 ml / 5 fl oz professional size is suited to regular use at home or in the salon. After the 4-minute treatment, leave it in and style as usual.

Why choose this K18 hair mask?

• Targeted damage care: formulated with patented K18Peptide™ to help reconnect damaged keratin chains.
• 4-minute treatment: no rinsing required.
• Lightweight feel: helps hair feel softer and smoother without weighing it down.
• Versatile care: color-safe and suitable for all hair types and textures.
• For processed and heat-styled hair: ideal for a routine focused on bleach, color, chemical and heat damage.

How to use

1. Shampoo, but skip conditioner before applying the mask.
2. Towel-dry hair until damp.
3. Work a small amount through the mid-lengths and ends, adjusting for hair length and needs.
4. Wait 4 minutes. Do not rinse.
5. Apply styling products and style as usual after the 4 minutes are up.

Use for the first 4–6 consecutive washes, then every 4–6 washes for maintenance.

Size: 150 ml / 5 fl oz.