No matter what kind of elixir is refined, it must be tested.

Just like ordinary people other than martial artists, the medicine used when they are sick has also gone through various tests before it is officially put on the market.

However, when a martial artist refines medicine, the test is not a guinea pig, but a direct human test.

In this test manual, there are also records of those failure cases, those failed pills, and various reactions that will occur after people take them, many of whom died tragically, and these pills were also recorded as poison pills.

This is also the reason why, after the higher the realm, some of the best pills are even rarer, if you want to find someone to do the experiment, you must find someone who is strong enough.

Hanjiang Feixue, although she has a long life and has lived for 10,000 years, her life experience is only more than 20 years now, because all kinds of memories in the past do not exist.

Before entering the rivers and lakes, she was just a cultivator who lived with ordinary people.

I don't know a lot about the cruel things on the path of cultivators.

For this matter, Shi Feng couldn't comfort Han Jiang Feixue, Shi Feng could do it by himself when refining medicine without anyone doing experiments, but it was difficult to restrict the rest of the alchemists from doing so.

But any alchemist, as long as he has some achievements, he can have a good status, and those who test the medicine will also be arranged.

Unless, in the future, someone truly realizes the unification of all planets and formulates clear legal provisions, but obviously this is very unrealistic.

After all, the starry sky was too vast, and even now, Shi Feng didn't know how big this starry sky was.

"Blizzard, this world, has always been so cruel. ”

Hearing Shi Feng speak, Hanjiang Feixue nodded, "I know, but can you make this world change more or less for the better." ”

Shi Feng looked at Hanjiang Feixue and nodded solemnly, "It will change slowly." ”

At that moment, Shi Feng put away the two books, and then carefully checked the rest of the materials inside.

Among them, there are many refined pills, and the number of immortal stones is also very considerable, among which there are even a lot of high-grade immortal stones.

After the battle of those Saint Realm powerhouses, many of the weapons left behind were completely preserved, and they were all put away by Shi Feng.

And among them, what made Shi Feng most pleased was the medicinal herbs inside.

Now, Shi Feng's most urgent thing is to break through to the realm of true immortal perfection, and now, the medicinal materials in Shi Feng's hand can already try to refine the elixir.

The reason why it is said to be an attempt is because the medicinal materials in Shi Feng's hand are not all the medicinal materials recorded in the book just now, nor are they all the medicinal materials that Shi Feng has mastered before, but they can complement each other, and according to pharmacological judgment, they should be able to refine the elixir that assists Shi Feng to enter the perfect realm.

The realm of perfection is not a realm that must be broken through, even if he does not enter the realm of perfection, Shi Feng can still enter the next realm and become a golden immortal.

But entering the perfect realm can make Shi Feng's strength stronger, both for the strength at this stage and for future growth, it has a vital role.

So, Shi Feng plans to give it a try.

Because he planned to kill the four sub-saint powerhouses, the power of the four sub-saints, Shi Feng was going to absorb them, and if he broke through to the perfect realm of the true immortals now, he could use the power of the four sub-saint powerhouses to impact the realm of the golden immortals.