Quote Originally Posted by hp-^
I've had them for a while but they have not been working whatsoever.

They dry out very fast and do not retain moisture at all.

Have your experiences all been positive?
If you're talking Viper's beads, you have other problems. What volume of beads are you using and what volume of humi are you trying to use them in? Does your humi seal properly? What humidity are you detecting?