CH 435

In other words, the energy in the lotus seeds is like medicine, the effect is the best when you take it for the first time, if it is like the green fruit that Bai Ling fed to the little meatball before, if you feed it drop by drop, the effect after that will never be effective. The effect is good when the first drop enters the mouth.

This is also the reason why Bai Ling gave Bai Shan the rest of the fruit in the end.

Diluting it can slow down this "drug resistance", but it can still achieve the effect of promotion.