According to Bodybuilding.com, the NO2 packaging label states that the product is to be used by those who are 18 years old or older. It also states the product must be kept away from children.
NO2 is a supplement for muscle growth. The packaging label suggests the product be used only by men over 200 pounds and women over 125 pounds..NO2 states that consumers must see a doctor before taking the supplement if they are diabetic, nursing, pregnant, taking treatment for high blood pressure or taking prescription drugs. The FDA has not evaluated NO2, and it is not used to diagnose, treat, prevent or cure any diseases.