New side to report. Lost about a square inch of a patch of hair on the back of my head. I have run S23 several times and this frequently occurs (hair shedding), but I’m not too concerned as it has always grown back after cycle. It also happens in weird spots. Not spots where male pattern balding would occur but lower down on the back of my head. Luckily I have short hair and shave my head so it is hardly even noticeable. My wife didn’t even notice it till I pointed it out. Also, not sure if I mentioned, but maybe the only bad side I am getting from the Methyldiazirnol is frequent night time urination probably due to it temporarily enlarging my prostate (keep in mind also I am 42). Other than that everything is going well and continue to see improvements in the mirror which is even a better judge than the scale in my opinion. Being at 1200 calories also hasn’t been near as difficult as I was worried it would be. Thought it might bring on the urge to binge. Been eating a lot of fiber.