I never noticed any nausea, and i was running 1500 mcg every 3 days. Yes thats correct, i said 1500. I mixed only 1 ml of water w/ the 10 mg of powder in the vial, so 15 on the slin pin was 1500 mcg. This was unintentional, i screwed up the dosing. I was telling my wife, who's been a nurse for 30 years, she started laughing, and explained to me my screw up. I was getting crazy erections, thank goodness not at the gym. After getting minimal uv exposure, i started seeing the results very quick. My wife is hispanic, and after like barely any time in the sun i was damn near passing her complexion.