Don't know. But according to security it is accessible from C without leaving the security zone.
I loved the duty free. All these sample creams in the price range of 100, 200, 300, even 400 euros. Anything over 200 euros was wiped clean before I came

. Ended up buying some creams for a total of 6 euros

. Not so into the expensive creams as my skin is perfect without them.
They had sample shaving balms. I did shave this morning but I wasn't daring enough claim any "Lufthansa" "free" "amenities." I am in concourse C with no showers in the business lounges.