K18 Peptide Prep Pro Chelating Hair Complex is a pre-service spray for professionals, used before bleaching, colouring or extensions; here in the 300 ml bottle. It is described as a spray that removes metal and mineral build-up and does not strip the colour. It goes on dry hair in four sections and stays on for 4 minutes.

What to expect

A short first step in the colour room, on dry hair before anything else goes on. The work is in the sectioning: four sections, each sprayed evenly, so no part of the head is missed before the wait starts. The feel afterwards is described as hair that gets its suppleness back.

Who it is for

• Colourists who prepare hair before bleaching, colouring or fitting extensions.
• Salons that work the K18 chain in the colour room, with this spray as its first step.

Who it is not for

• Hair with no bleach, colour or extension appointment ahead: the directions place the spray in front of those services.

How to use

The published directions, translated from Dutch. The words before the first step are left out (…).

Method A: the published directions

1. … it is important to shake the bottle.
2. Then turn the white button to "ON".
3. Now Hair Complex is ready to spray!
4. Make 4 sections in the dry hair and spray 6-10 times on each section. (With long or thick hair you can of course use more sprays.)
5. Leave it on for (the well-known) 4 minutes.

Where it fits in the K18 range

The published salon protocol goes on after this spray with the K18 Molecular Repair Hair Mist. Next comes a wash with the K18 Peptide Prep™ Detox Shampoo, conditioner skipped, then towel-drying, and the K18 Leave-In Molecular Repair Hair Mask as the last step, started at the ends. The spray is one of the three products in K18 for the salon; every K18 product is on our K18 brand page.