Have a pre-employment test for nicotine coming up, how long is nicotine detectable in blood and urine and does the detox stuff they sell work?

2-4 days: Not sure about blood but nicotine is usually tested by a urine test for cotinine, a metabolite of nicotine that stays in your body for 2-4 days after your last cigarette.I would not rely on the "detox stuff."stopping smoking is probably the best thing you can do for your health.The first days are the hardest, so if you stop for 4 days you should take the opportunity to stop for good.See comment:.

Nicotine test: “When someone stops using tobacco and nicotine products, it can take more than two weeks for the blood level of cotinine to drop to the level that a non-tobacco user would have and several weeks more for the urine level to decrease to a very low concentration.” REF: http://labtestsonline.org/understanding/analytes/nicotine/tab/test/. I am not familiar with any reliable detox products for this.