K18 Repair Hair Mask Set: Leave-In Mask 50 ml + 5 ml, home and away

K18 Repair Hair Mask Set is the same leave-in mask in two sizes: the K18 Leave-In Molecular Repair Hair Mask in 50 ml for home and in 5 ml for on the go. It goes on washed, towel-dried hair, stays for 4 minutes and is not rinsed out.

Mask set at a glance

What it is: one mask in two sizes
Contents: Leave-In Mask 50 ml and Leave-In Mask 5 ml
Use: at home and on the go
Before application: a thorough wash, then towel-dry
Wait: 4 minutes, no rinse
Format: 50 ml + 5 ml

Key ingredients

The mask, from its ingredient list

sh-Oligopeptide-78: 9th on the list
Cetearyl Alcohol: 4th
Behentrimonium Chloride: 7th
Hydrolyzed Wheat Protein: 10th, wheat-derived
Hydrolyzed Wheat Starch: 11th, wheat-derived
Tocopherol: 13th

What to expect

The mask cares for and strengthens damaged hair in 4 minutes and is described as improving elasticity, with less breakage. No parabens, sulfates, silicones, phthalates, sodium chloride or artificial colours appear on its list. What matters is the wait: the full time on towel-dried hair before any styling product. On long or thick hair, work the mask through section by section.

Who it is for

Clients who use the mask at home and want a small size for the gym bag or a trip.
Anyone trying the K18 routine: the 5 ml is the same product as the 50 ml.

Who it is not for

Anyone looking for a backbar size: this is a set for home use.
Anyone sensitive to the fragrance allergens on the list: Geraniol, Linalool, Hexyl Cinnamal and Benzyl Alcohol.
Anyone avoiding wheat-derived ingredients: Hydrolyzed Wheat Protein and Hydrolyzed Wheat Starch are on the list.

How to use

The mask's published directions, translated from Dutch, with one clause cut (…). They are the same for both sizes.

Method A: the published directions

Start by cleansing your hair with the Detox Shampoo or Maintenance Shampoo.
Wash your hair thoroughly and keep repeating this until all product residue and oil has been removed from your hair.
Then towel-dry your hair and apply the Leave-In Mask.
Wait 4 minutes …
After the 4 minutes you can use a leave-in conditioner or styling products, although that is not necessary.

Where it fits in the K18 range

The mask is also listed alone in 5 ml, 15 ml, 50 ml and 150 ml. Its directions start with a wash with the Detox Shampoo or the Maintenance Shampoo, the earlier name of the DAMAGE SHIELD pH Protective Shampoo.

Complete and maintain the system

K18 Peptide Prep™ Detox Shampoo 250 ml: the K18 shampoo recommended before the mask
K18 DAMAGE SHIELD pH Protective Shampoo 250 ml: the DAMAGE SHIELD shampoo for the daily wash

Frequently asked questions

Is the 5 ml the same mask?

Yes. Both bottles hold the same Leave-In Molecular Repair Hair Mask, in a different size: 50 ml for home and 5 ml for on the go.

How do I use it?

Wash the hair thoroughly until all residue and oil is out, towel-dry it, apply the mask and wait 4 minutes. It stays in; a leave-in conditioner or styling products may follow but are not needed.

How often do I use it?

Use it for 4 to 6 washes in a row, then every 3 to 4 washes to keep the hair in good condition. It goes on freshly washed, towel-dried hair only.

Is it for the salon?

No. It is a set for home and for on the go, with the mask in two take-home sizes.

Do I rinse it out?

No, it is a leave-in mask. After the wait, styling products can go on if you want them.