Illustration of the four generations of e cigarette or vaping products. Download Scientific Diagram Are vape pens, or e cigarettes, ever the better option? Ohio State Health & Discovery We break down the key differences between traditional cigarettes and e cigarettescovering: 1 Their compositions and ingredients. 2 The health risks associated with both. 3 Nicotine levels and addiction potential. 4 The impact E cigs: More Dangerous Than We Thought Colorado Allergy & Asthma Centers, P.C.