Here's what is on sale in our local Jusco supermarket :) Well actually it was on sale for a couple of months already, but somehow I didn't have any desire to buy it. Finally bought it today.
Presenting! The Final Fantasy 7 10th anniversary Potion! :) On sale NOW in all big japanese supermarkets!

and what about the color?

The potion is priced at 200yen, which is higher than usual 120-150 yen for similar "normal" drinks. The taste is.. well.. if you have ever drank Real Gold, you get the idea. If you haven't.. hm.. well it's a sugary taste, nothing special, remains in mouth for a pretty long time and makes me want to wash my mouth :) Unfortunately, nothing special, even remotely potion-like. I'd say.. may be 20hp. Doesn't worth spending timeline to drink unless you're level 2 paladin ;) or whatever
There are a plenty of can designs (not only Cid). All main character from FF7 Advent Children, I believe.
I have wrote about the "real" potion before, by the way.