Staminan XX is a recovery item that replenishes both heat and health.
It is a part of the Staminan series of recovery items. It restores more than Staminan X, but less than Staminan Royale and Staminan Spark.
Trivia[]
It's description and art is probably a reference to the real-life product Taffman EX (and its variations), made by a Japanese company, Yakult.