Review of the Tear stain removing product from Castle Bath. After watching the video from Castle Bath and reading reviews, we were so excited to try this product. We thought: This one looks like it might actually work! From that video, it looked like the shampoo was the product that did most of the cleaning. So we decided to try that one first before investing in all three products. NOTE: For the two eye cleaners, we used it 2 sometimes 3 times a day. We also wiped her tears with a warm damp face towel once a day.