Hi Elizabeth. If you go on to yahoo groups, go to the group called NCD adults. You don't need to be a member of this group. If you read the messages, you will see that every Wednesday night between 9:00 and 10:00 p.m. e.s.t. you can call a number and speak to a dentist with your questions. My dentist is one of the dentists on that call in line (he answers every other week I think). I saw him today, and he told me that NCD is safe to use while pregnant or with young kids. I was asking him about giving it to my 8 year old. If you call you can ask specific questions about it.