How do I use the extra transformations with the ring of Hircine?

Im wearing it (not the cursed one) and I can't transform anymore than once a day. The power is also greyed in the powers menu... what's going on?

sounds like it glitched out.

You probably have to wait. There is usually some sort of delay when you transform.

I just looked at the uesp. Try the "Ring of Hircine" power in the Power menu.

When you equip ring you'll get a -new- power in power menu, called 'Ring of Hircine'. Beast Blood is still only a once-a-day power. THe ring though you can just reequip after you transform back to man/mer and use the ring of hircine power again.