Is 100% nicotine bad for you?

I understand that nicotine is a stimulant found in tobacco products, but what about nicotine in its purest form, at a concentration of 100%? Is consuming or using nicotine at this level inherently dangerous to one's health? Are there any specific health risks or concerns associated with 100% nicotine exposure, and if so, what are they? Additionally, how does the effect of 100% nicotine compare to the nicotine found in traditional tobacco products, such as cigarettes or cigars? I'm curious to understand the potential risks and implications of using nicotine in its purest form.