NAC: The Amino Acid That Turns Psychiatry on Its Head (2018)
psychologytoday.com
psychologytoday.com
Not for long. The U.S. just reclassified it as a drug. [1] I have a few bottles of it, but when they truly expire I will have to make my own.
[1] - https://proteanutrition.com/2021/06/08/fda-changes-in-usage-...