Su Xing paused when he saw that, then nodded his head.
"Right! The potency of the herbs is related to their age... such a simple problem, how did I only think of this now?"
Su Xing felt a bit embarrassed.
But in fact, he couldn't really blame himself. After all, Su Xing didn't have a master to guide him in the study of alchemy, everything had to be explored by himself.
The fact that he could refine some low-quality elixirs was already due to decades of relentless effort, let alone refining higher-quality elixirs, which would be even more difficult.
Realizing this, Su Xing felt more confident about refining the Organ Refining Pill and continued his simulation.
[You wanted to continue refining the Organ Refining Pill, but at the moment you had no main ingredient, Huang Xian Essence. So, you took some seeds from the medicinal herbs Qing Yunzi left you and planted them in the Spirit Field.]