The Fizzell Magic Pharmacy Company is the largest potion manufacturer in the wizard world.
In many respects, the potions produced by this company naturally bear the 'qualified' seal. Therefore, when Zheng Qing submitted the potion instruction manual and other materials to Old Yao, he emphasized this point, implying that the potions he used were safe and there was no need to consider factors in this regard.
Old Yao slightly raised his eyebrows and gave a noncommittal nod, but did not immediately comment on the safety of the potion used by Zheng Qing.
