I think I would choose Arthro-IonX. If you needed something stronger then you could try Promaxol. Many pets have been helped by Arthro-IonX and since your dog is young and not too severe he should respond well to it. Arthro-IonX helps to decrease pain and inflammation and stimulate healing. In addition I find it helpful to follow a holistic approach by giving some nutritional supplements to accompany Arthro-IonX. The supplements I recommend are digestive enzymes with meals, MSM, probiotics, and fish oil. Arthro-IonX will help the body to better utilize the nutrition for a synergistic response. Please let us know how you do or if you have any other questions.