Regarding the formula of Yunnan Baiyao, it has already become a legend in later generations. Countless people have tried to recreate it, including those outside of Tianchao, but even up until Qiao Xiaomai's time-travel, no one had published the formula.
Yet Yunnan Baiyao continued to grow more prosperous, producing numerous products, even items like toothpaste and shampoo.
Qiao Xiaomai didn't hope for Bei Lingsu and Bei Yun to develop toothpaste and shampoo—she only wished for them to successfully recreate Yunnan Baiyao. With this formula alone, the sins weighing on Bei Yun could be washed away.
This is something that could be passed down for thousands of years and save countless lives, capable enough to cleanse Bei Yun's transgressions.
