I was in Cartagena in February when one of the locals who is now like a friend of mine told me about this stuff. He said don't mess with Viagra or Cialis, as this stuff is all natural and works amazingly. So we all tried 2 capfuls like the directions say, and all I can say is WOW. Not only does it work but it also gives you that sensitivity back for any of you who are over 40. It was roughly $17 a bottle in Colombia, but only place you can get it in the US is off Ebay. Price varies depending on supply/ demand but anywhere from $40-60 a bottle which has roughly 18 doses.