We gave our 16 year old dog, Rosco, the senior formula oil for more than a year now, and it has contributed to his overall health & wellness along with good diet & regular exercise. He gets his "drops" on a spoon 30~45 minutes before breakfast and dinner daily, and it was easy and he loves it.
The only reason I gave it 4 stars instead of 5 is because the leaking issue after shaking the bottle before serving. I hope you can find a better packaging solution on the inevitable oil spill since it is necessary to shake and mix the ingredients of the oil . After shaking, the oil residues on the top of dropper just drips around the neck of bottle every time, it can be messy and wasteful. The product will be perfect once this issue is resolved in my opinion and we believe that this product has helped with our precious fur child in his senior years. Thank you!