A sweet, tangy cup including hibiscus, rosehips, cinnamon, lemongrass and chamomile. caffeine free and available exclusively online. hibiscus flowers provide the red-wine color and tangy flavor of this blend. the "c" stands for the spicy cinnamon and sweet chamomile ingredients; plus, the rosehips contribute "c" in the form of vitamins. hibiscus c blend has a lot of complexity, body and pungency for an herbal tisane. by the way, the word "tisane" is a french term for what americans call "herbal tea". peet's herbals offer a flavorful cup without the caffeine.