I have taken 1 x500mg capsule by Eurovital (30% standardised) every day for years. It is brilliant. Its shuts anxiety dead and lasts 24 hours. There is no euphoria or any extra special feelings at all. I have run out and cannot source. I have now experimented with various other capsules and tried to accurately ensure I have similar Kavalcatones to by eurovital tablets. They all give me a good feeling for an hour or two but then my anxiety returns with force. Taking more does not really work. More euphoria and then after 2 hours anxiety with more force. I have taken powders (instant) and perhaps I have too much but I can get the good feeling for a couple of hours before my anxiety returns with force. I am confused as to whether to keep trying brands? or maybe I should be experimenting with amounts. I cannot work out why one brand would be so different. Any clues or suggestions appreciated.