Super expensive yet super effective supplement for memory and focus! In future, I would only ever buy this product on sale. I suffer from pretty bad anxiety during exams (prior to being placed on bedrest for pregnancy, I was doing premed courses here in Vancouver, BC) and found that this product was just what I needed in order to calm me down beforehand. Taken only half hour before, this supplement was perfect to help me relax and focus my mind on my studies rather than what's at stake! I also found it helped me to recall important details more quickly and, used during study sessions, actually promoted easier memorization. Highly recommend this to those studying or working in the science, medical, or accounting fields.