The first time ever that I've had something which has been absolutely useless. No effect whatsoever , better off giving my plant coffee to help it grow. COLUMBIANA is the offending item. It did have some good reviews but I think that was a long time ago. This was a real waste of money & I cannot stress enough to avoid this. This review will probably not be shown but it's the truth. Stick to Go Cane which I would have bought but it was out of stock. whether I will bother buying again from here after this rubbish , I'm not sure. I'm sure other people have said the same but their reviews probably haven't made it either. Very Disappointed.