Rejuverol

Rejuverol is a human drink commonly dispersed in bottles. In 2526, Sergeant Avery Johnson was given a bottle following his rapid awakening from cryogenic stasis.

Possible purpose
Given the name's similarity to "rejuvenate", combined with the circumstances of the drink being given to Johnson, it is likely that Rejuverol serves as a drink administered to assist those who have recently awakened from cryosleep.

List of appearances

 * Halo: Silent Storm