They didn't find it strange that Ning Qi refined the ninth-level elixir. After all, this elixir was refined with Yan Shengzi. If it was not the ninth-level elixir, it would be strange.

From the beginning to the end, Ning Qi added the fairy grass spirit at will

Medicine, and there is no specific pill formula. If you are an ordinary alchemist, even if you are at the level of Bodhi Dandi, you must fail to make alchemy. However, Ning Qi has the alchemy furnace of Taishang Laojun and the inheritance of Dragon Eater Pill Emperor. With his advanced alchemy technique, coupled with his own attainments and comprehension of alchemy technique, he successfully made alchemy without spending much effort.