From Guild Wars 2 Wiki
— In-game description
- Choice of a reward for reaching level 24 and 54
|Gem Store||–||5 / 550|
- Enchanted Reward Boosts can be created from this booster from Black Lion Traders or Boost Enchantment Powder.
- The boost increases bonus crafting experience, but does not affect experience towards leveling. In other words, you use fewer materials in order to gain crafting ranks.
- As with other consumables, the timer only counts down while the character is active; you do not lose any time while playing other characters or while logged out.