Never heard of it. I'm pretty skeptical of most dental products in pet stores to be honest. I have heard good things about LebaIII (I think that's what it's called). You spray it on the teeth once a day. Honestly though the best things you can do for your dog's teeth are to brush them every day and provide good toys and chews. Rubber toys are the best, like Kongs. Stay away from tennis balls and rope toys which are abrasive to the teeth. Good dental chews (I think DentaStix are evil personally... I've seen way too many broken teeth from them, however someone recently told me that they were reformulated and are now soft enough to break by hand) like the Zuke's dental chews, beef pizzle, even raw marrow bones if your dog is a smart chewer. I don't like any kind of bone for aggressive chewers. I do give Summit raw marrow bones though as he mostly just chews the little bit of meat off and then licks out the marrow. No cooked or smoked bones as those splinter.
Summit's teeth are beautiful now. When I got him 11 months ago I was worried I was going to have to do a dental on him within a couple of years. Brushing his teeth every night and providing safe, good chews has done wonders. I am very hopeful that he will pretty much never need a dental.
Edited because I keent speel.
This works well for the majority of hounds. Sadly some hounds just have bad teeth. Jet grows plaque like he has fertilizer in his saliva or something. He got a dental a year ago, I brushed nightly and used a water pik (which he lover the dufus) He needs another dental and will likely loose a ton of teeth. Our vet says some dogs are just like that. Since all 4 of our dogs get the same dental treatment and none of them have had a dental since adoption I have to agree. Even 12 year old Jake has good teeth.