Shirt from the UK
 

I have a shirt from the UK. Boden, specifically. I need to wash it for the first time and the tag says, "Do not use biological washing powder". Ok, I won't!

What the heck is biological washing powder?

It's a powder that you use to wash your biologicals, silly.

Actually, it's one of those detergents with stain-removing enzymes.

like oxyclean?

i'm assuming tide will work fine.

See, there's another huge cultural chasm.

We've had biological powder here for years, and it's horrid. You don't even HAVE it!!

mind blowing; just mind blowing.

use any "normal" US stuff- tide, etc... I usually don't put my boden stuff in the dryer (tumble dry).