Grants you ChemPass EXP in the form of single-tier vouchers, each equivalent to one ChemPass tier. Using them all will increase your ChemPass by exactly 10,000 EXP each. For example, if your current ChemPass tier is 15 and you have 3,000 EXP, redeeming 5 tier vouchers will advance your ChemPass to tier 20 with 3,000 EXP.

Purchasing any number of ChemPass tiers voids your eligibility to the Tier 150 ChemPass Completion Rewards (your head in the museum, the exclusive completion tag) and to appear on the ChemPass leaderboard. In other words, only players who complete the ChemPass by earning all of their EXP "manually" by completing quests in-game are eligible for the Tier 150 rewards and ChemPass completion recognition.

Please ensure that you are not already above Tier 150 in your ChemPass before purchasing EXP.