Think Gum

[1] It contains caffeine, Ginkgo biloba, Bacopa, vinpocetine, guarana, peppermint and rosemary.

[2] The chewing gum is sugar free and contains 10 mg of caffeine per piece.

Think Gum was created by a Stanford University medical student who developed the product to get more out of his studying.

[4] Think Gum was featured at the 2008 Cool Product Expo as well as on the San Francisco Bay Area Evening News.

[5][6] Think Gum LLC has sponsored events such as the Butt-Numb-A-Thon, Stanford's Entrepreneurship Week,[7] and the Ernst & Young Entrepreneur of the Year Awards.