The Greenway Formula 7 Head Lice Eliminator is made of a potent, all natural and essential oil based ingredients that completely eradicate head lice in just 30 minutes or less. The special formula contains clove oil, almond oil, glycerin and purified water. It is 100 percent safe for young children, pregnant women, nursing mothers, elderly and to those with asthma or allergies. To prevent spread of head lice and reinfestation, spray the solution on your bedding or pillow. Also, you may bring a small bottle with you to movie theaters or planes and apply it on your seats to avoid acquiring head lice. Because young children are prone to these itchy head lice, spray the solution on their hair and book bags before sending them off to school. Shake well before and during use.