Interesting, I did a bit of research and discovered that Cotinine is a metabolized by product of Nicotine (Your body makes it) BUT, NNAL seems to be a "Metabolized product from Nicotine due to the curing process of tobacco".
So, the question is, does the NNAL make it into the extracted nicotine solution that were are using? I did find that it is considered a nitrosamine but I did not get that from Cotinine.
Now based on the FDA report, and the fact that other NRTs are out there, I would say that if NNAL is in the extract, it is trace amounts.
I can't get a good answer to NNAL and Nicotine extract because all of the studies are around smoking and chew.
Nestran
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