The caffeine content of Papillex is less than 1% due to the green tea extract. This concentration is very low, especially considering a cup of coffee contains approximately 100mg of caffeine (about 40%). At less than 1% caffeine, a 2-capsule serving of Papillex contains 3mg caffeine (300mg is the green tea extract dose at less than 1% caffeine). Essentially, there is nearly no caffeine per capsule.