I love this stuff. It made my black dogs coat just glow. But I got cheap and tried another option that was slightly less expensive (it was made of more flaxseed then cod liver oil). After giving it to him for a month, I saw no benefit to his coat. It looked kind of dull. So I'm back on this stuff. Everyone always tells us how beautiful he is. I've also noticed that if we take him off this, he has problems with his hips. He walks very stiffly. But when he gets it regularly, he walks more smoothly with no stiffness.