The 'concentrate' in the small glass bottles is the Thai stuff. No carbonation, easier to drink than the canned stuff, and tastes WAY better with vodka, though you really don't want to be mixing the two. Take it from an addict, you want the Thai stuff.
'I've had some good sex, but it's not very reliable. You can't phone up the sex report, ya know? You can phone up the snow report'...Crucial Mike