Like the price and amount of servings and the way it mixes easily with water or other liquidsLittle pricy, use it hopefully to maintain an active and alert consciousness.....Really enjoy taking L Serine. It helps to calm my mind. Take a lower dose with dinner (500-800mg) helps me sleep at night.Dr. recommend for brain healthBased on this study http://www.ncbi.nlm.nih.gov/pubmed/24086518 I believe that to arrest ALS Parkinsons Alzheimers requires a 3 step process. One should use L-serine . first we have to get the body to go after the damaged proteins, we can do that through autophagy. Basically, one eats less than 20 grams of protein a day (for a couple of days each week or a week once every 3 months) and exercises to create a demand for amino acids that exceeds the supply coming in, Note there is protein in fruit, vegetables, beans etc, so we have to count every bit of protein, so basically we eat some fruit and vegetables, so you are not starving but just limiting total protein, Autophagy is a natural process which humans have gone through for millenium that helps to clean out the clutter in our bodies. It is very healthy for you. Of course, most ppl rarely ever go without at least 20 grams of protein per day, so their bodies are never forced to clean house. Secondly, we want to make sure that when the body breaks down the damaged amino acids, that we have enough l-serine to build the new protein correctly, If there is sufficient serine, it will not use bmaa. Finally, we need to remove the bmaa from our system. The best way to do this is to consume sulforaphane (not supplement form but from cruciferous vegetables). Sulforaphane is the closest thing to a miracle compound that exist. Study after study proves it is effective and beneficial for almost any health issue and supercharges the liver to detox the body, Sulforaphane is found in broccoli and red cabbage, however, most ppl do not process them correctily. One must crush/shred raw not ever frozen broccoli or red cabbage I juice mine, and then wait for an hour before consuming it. This allows for the enzyme to convert the precursor to sulforaphane to sulforaphane. One does not want to consume the sulforaphane daily but every other day. One could do this 3 step process over a couple of days each week or do a week at a time. I developed this process myself. My sister has parkinsons and I am hoping to arrest her disease. This will not undo the damage but stop further damage I believe. I am not a doctor or a nutritionist but I have studied thousands of hours of nutrition.I have been looking for a Rose Gold Star of David.Thank you!! NecklacesWatch the documentary on Amazon TOXIC PUZZLE and see that you can save your brain, the brain of your husband or wife, I am here to spread the word. I am 67 and I need to stay sharp and healthy.3/4 teaspoon in my morning shake gives me great assurance. Thank youthis L-serine powder is a great product it is easy to use and works fast it helps me feel so good i will keep on getting this one it last longer at a good price