GLC 2000 does it work?

Does GLC 2000 work (esp for knees and shoulders)?

While studies don't currently support the almost overwhelming testimonies regarding the gluco-chondro stack, it's a pretty popular supplement.

I started using it about 2 months out from an injury. Almost all the pain went away, but that could have happened on its own.

The few times Ive ran out and waited a while to refill, Ive noticed the joints feel the training alot more. Could be placebo though.

For a decent price I dont see the harm.

Thanks for the feed back