Has anyone tried colic calm for their baby?

I don't like the fact that I have to order something online for my baby so I first want to make sure that this website for colic calm isn't a scam or anything and then if it isn't how safe is this product? The website does a good job of explaining but I just don't trust websites and it gets me thinking when you can't find this product in stores I mean if it's that good why is it only available online, so if you know anything about this product please let me know.