Do I need a traditional herbal registration (THR) in the UK?

Hi all, I am looking to release a herbal product supplement on the UK market that would help with colon cleansing and weight loss. The product is a mix of Clay, Coriander, Parsley, Flax Seeds and a few more, in certain percentages. The mix comes as a pouder, imported from an EU country and it already has a... show more Hi all,

I am looking to release a herbal product supplement on the UK market that would help with colon cleansing and weight loss.
The product is a mix of Clay, Coriander, Parsley, Flax Seeds and a few more, in certain percentages.
The mix comes as a pouder, imported from an EU country and it already has a certificate of conformity with the EU regulations.
Do I need a traditional herbal registration (THR) in the UK? Can anyone bring some light into this?

Thank you! :)