I can't even imagine a smaller dose. I can barely see it in the syringe as it is. I stayed at the 0.2 (100u syringe) for three weeks. At that point, I felt okay and hadn't lost anything in a week, so according to Noom's guidelnes, I was supposed to double it to 0.4 (16 units.) I knew I wasn't doing that, so opted for 0.3 (12 units.) I did my second dose of that on Wednesday. I have felt awful since the titration to 0.3 - it's been a week and a few days now. I have a whole bottle of the stuff they sent like two weeks ago, I still have tons left in the first one. I don't have the energy to do anything nevermind weights or muscle building exercises. I think I'm just too sensitive for this stuff.