Users start with 00:00:00 booster cooldown and can use any boosters until this goes above 24:00:00. At which point the user must wait for this to decrease below 24:00:00 before being able to use another. I.e. you can use 48 candies, 24 bottles of alcohol, 12 cans of energy drink, or 4 other special boosters within a 24 hour period. (+1 which will bring the cooldown above 24 hours as your last use).