Hello all! I am a newbie. I just received my e-cig kit yesterday and so far I am REALLY impressed and hopeful this will help me be more healthy as my attempts to quit cigarattes always fail. I opted for the Green Smoke couples kit for my DH and I. I am already excited to try making my own recipes to refill my cartomizers. I was wondering if anyone could tell me if there is any difference in the basic nicotine ingredient available online. I realize the different mixes can vary but is the root nicotine ingredient more or less the same? I see on E-juice USA that they have a bulk 16oz bottle for 59.95 which seems to be a good deal in comparison to buying several smaller 1 oz containers. I've looked around on the forum but I only find reviews and discussion of the e-liquid itself and not the root ingredient. Thanks in advance for any tips.