I am an authorized distributor for SNS. It is produced by the brain from the amino acid L-Phenylalanine. It is also present in cocoa and certain other foods in small amounts. Low levels of PEA are not thought to cause but are commonly present in those with depression and ADD/ADHD.
I have purchased this brand of this particular supplement many times. It is consistently of high quality and predictably works effectively for me every time.