Currently, there are two types of e-cigs: nicotine patches and nicotine gum. Nicotine patches are available both over the counter and through prescription. They give your body small doses of nicotine, which your body then absorbs through your blood stream box mod parts wholesale. Since you can only absorb a small amount of nicotine at a time, this type of patch can be effective for a short amount of time. However, they are inconvenient because you have to use them constantly, or use the patch while smoking regular cigarettes.