Zhuge Yu responded without hesitation, "The quality of a pill is determined by its efficacy and the level of impurities and toxic dross within it. The higher the grade, the fewer the impurities and toxins, and naturally, the fewer the side effects. If a pill were saturated with toxic dross, it would be impossible for golden patterns to appear."
However, after speaking, Zhuge Yu hesitated for a moment before adding, "But when I was studying how to improve this prescription, I considered that the impurities in these herbs could be removed. Every ingredient I chose was carefully selected for its ease of refinement."
Qin Xuan chuckled softly. "Unless your alchemy has reached the level where you can refine away every single impurity within the ingredients, one golden pattern is your absolute limit. Every herb is packed with impurities. Not only is it incredibly troublesome to refine them all, but if even a tiny bit of dross remains in every single ingredient, wouldn't the total accumulation still be significant? In the path of alchemy, innovation is indeed crucial, but one must follow the basics. If you do not fully grasp the pharmacological nature of all things, you will face endless obstacles in your future cultivation. I suggest you go back and re-learn your pharmacology."
Chapter 808