Wrong. Most isn't "all". Specify. Which market, where?
Most nicotine to be used for ecigs
is indeed tobacco derived but not all nicotine on the market is derived from tobacco.
See:
Synthetic Nicotine | Spectrum
Synthetic nicotine, often used in bug spray and in some nicotine lozenges marketed for smoking cessation, is much more expensive than naturally extracted nicotine
which is one reason why it isn't used in ecig juice. However some ecig juice vendors have
used or are said to have used some synthetic nicotine in some of their products.
In this thread:
Synthetic Nicotine - Is there really such a thing?
Rolygate states:
"We know of one supplier who claims to use only synthetic nicotine in their cartos. They pay $1,800 per barrel for their nic, when standard natural nic of very high purity is $300 per barrel or less. The reason they use it is apparently to ensure it is of the highest quality and contains no pesticides, carcinogens or any other contaminants.
It is of course very expensive. However this supplier (a major name) only sells cartomizer ecigs, and to the 'new buyer' market. Their product is very expensive indeed, around $150 or more for a starter kit - you know the type. Therefore I guess the nic cost is not a huge factor; also like many suppliers in that market their 'high strength' cartos are what others would consider medium or low. I can easily see that whatever the cost of their nic, it would be absorbed without issue, due to the price of the end product. The ability to claim ultra-high purity, and for that to be provable on analysis, would be a good selling point especially in that market.
This was unfortunately told me in confidence so I can't say any more on the subject."