Colour service Starter

Developer panel

Scan the developer, choose the ratio, and Colour Lab tells you straight away how many grams to add to the colour in the bowl.

How to do it

Weigh the colours into the bowl as usual.
Scan the developer. A panel with five ratios appears.
Choose the ratio the manufacturer recommends and pour developer up to the number Colour Lab shows.

Want to see it working, on a tablet with a scale?