When I was pregnant with C, I decided to try out the amber teething necklaces. I hadn't heard of them until K was older, thus why I didn't try it with him. I started putting it on her fairly early, both because K started teething early (first teeth at 4 months), and to get her used to wearing it. At 9 months, she still doesn't have teeth, but is teething, and the necklace really seems to help. With K I'd relied a lot on Hyland's Teething Tablets, which are wonderful. However, they have lactose in them, and C has a dairy intolerance, so they make her sick. Once her teeth start coming through we'll see just how much the amber helps, but as of right now, I think it's going to help her quite a bit. So far she's not needed anything other than the amber necklace and the occasional wet cloth to chew.