I've been giving our Golden Reteiver S3 tablets for a few years now. She's had both back legs (knees) operated on for ACL tears adn has arthritis. The last time I ordered the tablets, there were quite a few broken one's (and a bunch of powder in the bottom of the container). I thouhgt I'd try these out. since they're soft, I figured they'd be less likely to break during shipping. I was worried that our old girl might not like them. She loves them! Has one every morning. As for the ingredients, these suppliments are great. I call it Osteo Bi-flex for dogs. The only problem is, she thinks she's still a young pup and plays and chases the other dogs around the yard. Me vet recommended these when I told him that our dog was limping a lot and I had asked him for some Rimadyl (puppy motrin). He said he'd rather not have her on anti-inflammatory meds long-term. GREAT PRODUCT.