Does provestra work?

I was just wanting some feedback on this product and if it has any negative side effects, and if it actually works and is worth purchasing.

Hi there,

Provesta is made from pure and natural products so according to their site , you can be guaranteed of receiving a completely safe, herbal supplement which will not affect other prescriptions or interfere with birth control. There have been no side effects. On the other hand, because the herbal ingredients have effects on the entire sexual system, some women see a slight increase in breast size. Also, you are cautioned to beware of products whose origin or ingredients are unreliable.

The reviews are pretty positive, I would try it out if you are curious.

Does it make you gain any other weight besides in the breast?