I have been using this product for 1 week now.I've had a problem for many years doing what I needed to get done on my To Do Lists. I self-distract whenever there's a moment of indecision. It's a very odd problem which occurred in recent years due to prolonged, low level EMF radiation exposure.I've been looking for methods to correct this and while I'm not saying L-Glutamate is curing the problem, I am noticing significant improvements in just a week. My mental clarity has steadily improved. I can focus much more on daily tasks. My sleep schedule has returned (circadian rhythm improvement). My wife said I'm easier to talk to (less irascible). I'm noticing slight changes in my face and body structure (fat/tissue is laying differently). I've changed nothing else to my lifestyle except adding 1.5 tsp of L-Glutamate twice daily on an empty stomach, especially once before bed.Actually, I've been waking up in the middle of sleep to get the dose in. Blood-brain barrier and all that. You may not need to go to those extremes but I really want my mind back.You can tell the product is good because it doesn't dissolve in water very well and has a very strong acrid taste. In other words, they didn't try to change the product to make it easier to consume. They're giving you REAL L-Glutamate!P.S. L-Glutamate IS Glutamic Acid. Not to be confused to L-Glutamine.