This product may be hazardous to health and is intended for use by adult smokers. Keep out of reach of children. blu products with nicotine, which is a highly addictive substance, e-liquid are not suitable for use by: Persons under the age of 18, pregnant or breastfeeding women, or persons who are sensitive or allergic to nicotine, and should be used with caution by persons with or at a risk of an unstable heart condition or high blood pressure.