it's not the edge of the earth, but you can see it from here
I'm currently using them. I have to use a double dose--but I use one of the HA and one of the regular Flex.
Pluses: he eats them. I know he eats them--I can run out and hand feed them to him.
Minuses: cost. Actiflex 4000 and HylaRx Complete are far more cost effective... OTOH-not at all if they get dumped/spilled
Low dosages compared to other products--EXCEPT for the HA, 125 mg of HA, which is nice as my guy needs at least 100mg.
Also... lately... I'm forgetting to give them. Tonight I came in with them still in my pocket. Doh. That's a ME issue, not a product issue...