My Rejuvenation Speed is A 'Little' Fast

A spoonful of Jiangbaisu, a scroll of Kuhesu, and a bottle of syrup so sweet it's nauseating.
Stir the crucible, evaporate the moisture.
Drink down the pain, reap a new life.
In the lands of steampunk alchemy, demons run rampant, elements drift, heresy lurks.
Xia Zhou looks up to the Mage's Holy Place, immerses himself in studying toxins, forging his own path of magehood.
(This is not an invincible story. The invincible tag is system-generated and I can't remove it.)