For each colour line, you will find what the manufacturer prescribes here: the mixing ratio, the oxidant volume, the development time, the grey coverage and the maximum lift.

Every piece of data is substantiated. You read the quote from the technical datasheet, with a link to that datasheet and the date we retrieved it. This allows you to check everything yourself.

We add nothing. What is not on the product data sheet is not here either: no estimates and no averages from other brands. The data sheet with the packaging always remains leading.