1 day post CoolSculpting and I can’t tell I had anything done, no marks, swelling, or bruising. Was it ineffective?

Just because you don't have any marks in the area after coolsculpting, it doesn't mean you didn't get a great treatment. Most people don't get much swelling or bruising or even prolonged redness, so if things look normal, it's nothing to worry about. Most can tell the treatment occurred because of a little numbness or tenderness. If you are concerned, contact your provider.Andrew Campbell, M.D.Quintessa

It does not mean that your procedure was ineffective if you did not have any marks/swelling/bruising.  Some experience those signs of inflammation, but others may not.  Only time will tell how effective the treatment was and you typically will start noticing results as early as 4 weeks after, and maximum results by 3 months after the treatment.  Hope that helps!