The products offered by Greengo USA are intended for use by responsible adult users over the age of 18 (or the legal smoking age of your state), and are not intended for pregnant or nursing women, children, people with or at risk for heart disease, high blood pressure, diabetes, asthma, or those who are sensitive to nicotine. Nicotine is highly addictive and may be dangerous to your health. Nicotine is highly addictive and habit forming. Keep out of reach of children and pets. None of our products contain nicotine, a chemical known to the state of California to cause birth defects or other reproductive harm.