Seems to be helping my retired, arthritic old boy. He does not appear to be as stiff as he was before having Devil's Claw. Been using it for about a month now.
I give NAF Devil's Relief to my horse who has navicular. Before he was intermittently lame, not really bad, just a bit unlevel and could change from day to day. He has been on it a year and (touches a large piece of wood!) he has been sound since. I love the stuff!
I give H&B's Devils Claw to my elderly samoyed bitch.
Her arthritis was so bad that we thought she ought to go to the big kennel in the sky before last christmas, but we gave her one last chance and you wouldn't recognise her now; she runs, jumps, wants to play and is generally a very happy girl!