I took this pre PFS for PTSD, didn’t notice much to be frank. It was also in Dream N Grow which I used sporadically during recovery for sleep, didn’t seem to hinder me. But it was also a once a week to every two week thing until sleep was not an issue for me anymore and then I pretty much dropped it completely.

From reading on another forum, it appears melatonin and 5-htp stop the conversion of serotonin to melatonin (I think), so it makes sense why it would hurt PSSD people like Barbaar.