Chrissie,

You're getting an answer to your question - but not the answer you expected, or indeed to the question you asked! But it's still valuable - though it might change the course of your thesis research.

I wish you well!

Warm regards,
Philip Greenwood

P.S. I've heard of Henkel, but can't remember any of their products. Google helps, and yes, I recognise some big brands there - but I guess you wanted unprompted brand recall.