I have taken it in higher doses and yes I too got it from Biovia. There is a book which I read (its quite old now and was written before the medical community sort of caught up on these things - mind you I still think they haven't got there yet!) when in the depths of depression and really had no idea what was going on with my health and it was well before the menopause. Its called the Mood Cure by Julia Ross and it covers depression, anxiety, thyroid problems adrenal fatigue, CF and all those "conditions" that the medical profession say/said were all in our heads. I really liked the book, this is going back over 15 years and to be honest it really made sense when you read it basically I thought - yep that's me! now what to do about it! It gave plenty of things to think about in it and plenty of research in it going back sometime to support the theories. It is probably one of the only books like that I have bought that I would recommend.
I also got other stuff from America which is not sold here in the UK and tried with it (DLPA - DL-phyenylalanine/Same-e/L-tryptophan/melatonin (now that really works for sleeplesness)/GABA - Gamma-aminobutyric acid). These are all amino acids that the body produces naturally but which get depleted and cannot regenerate properly for one reason or another and therefore cause mood problems, fatigue etc. It partially worked for me but not necessarily in a spectacular way that you would rave about it but then we are all different and what works for one may not work for others. Personally I couldnt see any danger or harm in taking the stuff as they are all chemicals the body produces anyway. I personally felt so bad and so desperate that I was willing to try anything because I had come to the conclusion nothing could be as bad as living feeling the way I did. But some people dont like taking stuff and are very "tablet" phobic or shy away from so called "alternative medicine" but it's out there and it may work - its everyones own choice.