I have been struggling with difficulty sleeping and bad anxiety. I never even though it could be the glutathione itself causing this.
I'm glad you may have found the culprit. Something else to consider is that most liposomal glutathione is complexed with phosphatidylcholine, so that you get about 400mg of phosphatidylcholine per serving. I personally find that phosphatidylcholine makes me extremely irritable and somewhat anxious, maybe because it increases my acetylcholine production too much. If you aren't sure of how you react to phosphatidylcholine, maybe try the glutathione on its own?