These supplements are incredibly well made. I have been taking them for years. My gums starting receding quite a few years ago. I read somewhere that these supplements would help. I first said , ya right! But eventually out of desperation and no real other answers, I finally took a shot at it and tried it. Much to my pleasant surprise, they started to work. My dental hygienist measured my gums several times over the years. Every time they were getting worse until I started taking ACP! Bingo, it was working. And no dentist or hygienist will tell you to take this supplement!! Go figure. Take it, follow the directions and be patient. It takes awhile to kick in!