My 13 y/o lab/shepherd mix has allergies and anxiety, causing him to lick himself to rawness and infection. He's been on so many pills, balms, ointments, and worn the cone of shame too many times to count. After ONE shampooing with this product there was a huge difference! I followed their advice for frequency and his hair is finally growing back and no more stinky infection. I also use the lotion and that has made a HUGE difference in his skin and getting rid of the scabs when the skin starts healing. I'm truly amazed and so so happy!