Advanced Resonance Potion Development Materials Provides 8,000 Resonator EXP.

A potion that can greatly enhance the user's frequency perception ability. Collaborating with professional nutritionists, this potion is more beneficial to both physical and mental well-being compared to many healthcare products on the market. This potion enjoys a high reputation among Resonators, with many voices urging its manufacturer to explore a variety of flavors.
Sources
Quests
Huanglong Exploration
Simulation Training
Gladiator's Portrait