When you pick up a vape bottle or disposable, the nicotine strength is almost always printed as a number followed by mg/ml. If you're new to vaping, that number might as well be in a foreign language. But it's actually simple: it tells you how much nicotine is packed into each milliliter of liquid. And that number directly affects how your first few sessions feel—too high and you might get a harsh throat hit or a headache; too low and you'll be puffing constantly, wondering why it's not doing anything.

For most first-time buyers, the real problem isn't the math—it's that they don't know what strength matches their smoking history. So let's fix that.