“Works fantastic, but stains the shower grout and tiles. I had to treat the tiles and grout with RainX and seems to work in stopping the stain problem. I tried 100% pure cold pressed organic neem oil in a coconut oil based dog shampoo at at rate of of 1 tsp per 2 oz of shampoo, unfortunately this did not work for my German Shedder. I also tried shampoos with tea tree oil, but hat made him itch even more.”