CAMBRIDGE, Mass. — Move over, coffee and Red Bull. A Harvard professor thinks the next big thing will be people inhaling their caffeine from a lipstick-sized tube.

The product, called AeroShot, went on the market late last month in Massachusetts and New York, and is also available in France. A single unit costs $2.99.

Professor David Edwards said AeroShot is safe and does not contain common additives used to amplify the caffeine effect in common energy drinks.