Our guy had a pretty significant limp in his front right leg. We couldn't figure out what was causing it other than age as he wasn't whining or wincing with movement at the vet. The vet recommended these mobility supplements and gave us a trial. The results were pretty amazing within the first 2 to 3 weeks! He has been on the supplements for 2 months now and has no limping at all. They are super fast and friendly to use! I love the fact that they put the picture on the containers it warms my heart. Our first box we got, they sent us a whole welcome pack with some treats, a bandana, a ball, pen, and notepad. No one does that any more! It was super thoughtful and appreciated! We will most definitely continue to use Pet Friendly moving forward for our fur babies needs and I am excited to help support and see this company grow!