Our Labrador was very stiff in his front legs, we had stoped taking him out and were medicating him with paracetamol and a joint supplement. We stopped the paracetamol and alternative joint supplement and within 3 days of giving him K9 Joint Health he was completely back to his bouncy self. He has been on it for the last 3mths and we have not look back, we walk him every day and he shows no signs of limping/stiffness. We cannot recommend this product highly enough.