I buy this every now & then. It is the subject of various Clinical Trials, as allegedly helps to stop & reverse Altzheimers, something which is supposedly not possible.
I tried it, and I felt an improvement, so I buy it once a month; though it should be a daily drink, but that would take cost to £1300 which is why I compliment it with Phasphatydl Choline capsules, that are also good for memory.
Clinical Trials latest have on affirmed 'short term memory', improvement, but not longer. And affirm it can halt Altzheimers if taken daily.
It works for my short term memory.
Have been using since my wife was diagnosed with dementia in MARCH 2015 has defiantly slowed the disease down, and she very much enjoys drinking it each morning.