They were tablets about the diameter of a quarter and twice the thickness which you dropped in a glass of water and when it dissolved, you ended up with a sweetened, flavored, carbonated drink, like pop. They came on this foil backed sheet and in various flavors. I wonder why they don't have them anymore. They were good. While in France a few years ago, I found they have a very similar product, but it's a vitamin C tablet, available only in orange.
You're right "They're Back" https://www.youtube.com/watch?v=TAX-rGlcfP0&NR=1"]YouTube- AmerilabTech-Fizzies-Production 8 Hotwater
So now that we've talked about the Fizzies in the 60s, let's move on to the hair problem known in the 70s as the frizzies. https://www.youtube.com/watch?v=cP4H4jV1Spo"]YouTube- Fighting the frizzies at eleven .
I'm guessing this isn't what you were refering to https://www.youtube.com/watch?v=UnZUEDdOVNw"]YouTube- Poprocks Grade A Hotwater