Question: is 1.8 nicotine a lot?
Answer: The most important thing to think about is how much you smoke or used to smoke: if you smoke a pack of cigarettes a day, the general advice is that 1.8 percent (or 18 mg/ml) nicotine e-liquid is the best choice. If you're a heavier smoker, then 2.4 percent (or 24 mg/ml) may be the best option.