I heard that people are a bit reluctant to use horse cartilage because it is animal cartilage, but when I went to the consultation, I thought it would be okay because it was cheap?? I thought this, but when I got home and thought about it, it seemed like there were almost no reviews about horse cartilage... ㅠㅠㅠㅠ I was so scared. Is there anyone who knows much about horse cartilage?