How is the Croma online shop

Sales change on April 1st, 2021

From April 1st, 2021, the entire distribution of Chroma® dyes and dye solutions will be handled by the sister company, the specialist laboratory trade DIAGONAL.

In order to process your orders via the shop as usual, you have the option of using the Apply for access using the form below. Due to data protection, we are only allowed to pass on your data to the sister company DIAGONAL with your permission.

Here you can go directly to the new shop

Please apply for access to the new shop by March 31, 2021!

Log in

You are not yet a customer and would like to use our online shop? Then simply write to us using the contact form below or by email with your contact details to: [email protected]

Please note: Our Chroma® products are only offered to business customers!



Do you have any questions about our range or do you need help operating our DIAGONAL online shop? Then give us a call:

+49 (0) 25 34 / 970 – 152

The trained and qualified DIAGONAL staff will be happy to help you.

Range overview

If you would like a quick overview of our range, open this PDF range overview.

Selected staining methods

We have summarized selected staining methods for you in this PDF document.

Solution and manufacturing specifications

The solution and production guidelines that we have listed in this PDF document have been in effect since 1962.

We are also happy to be there for you personally. Call us or write to us:

You can reach us by phone: