... nicotine usage: 1. Quit smoke products E-cigarette Liquid ,Nicotine Gum ,Nicotine Patches,nicotine for e juice ,nicotine content ffrom 12mg/ml ... 300mg/ml.Quit-smoking product, just like e-liquid or e-juice to refill the e-cigarette;or making nicotine gum /patch, nicotine ... 4. Used as an additive to manufacture food, nutrition and health care products, flavors and fragrances, cosmetics, and animal feeds. ...