I have a large breed dog so finding a bone and joint supplement for her general wellbeing was really important, especially as she does agility. My dog is allergic to green lipped muscles which is used in many other brands products and after lots research I settled on Proflax. Even though my dog is only 4, I have noticed an improvement in her recovery after agility and in her general quality of movement. I wouldn't hesitate to recommend Proflax bone and joint, it's easy to administer and mixes in well with my dogs food. All in all a great product.