I don't know how these work, but they somehow do. Sure, sometimes it takes half the bottle to get your kid to stop hurting, but they are awesome. It's like an attitude adjustment in a bottle for your teething toddler.
As of December 2009 I'm supposed to let you know if I'm getting paid or being given free products to endorse when I write about them. I have NOT gotten a thing from Hyland's. I just love this crap, that's all.