"What about the one from before?"
Zhou Mi had always thought that the transparent essence was what Li Lechen had made, since he had just used it to test on her. But now he was giving her a cleaning soap, which she found very strange.
Li Lechen naturally brought out the reason he had already prepared: "That one is specifically for treating acne, and it can cause some damage to the skin, so you only need to apply it once to get rid of the acne. Using it more often will only burden the skin. This cleansing soap is fine and can be used long-term."
Actually, Li Lechen hadn't even asked what the cleansing soap could do, but since it cost 200 coins anyway, its effects couldn't be too bad. And since it was the lowest-level skincare product in the future world, its effects probably wouldn't be miraculous. Besides, it was just a cleansing product.
Zhou Mi was also skeptical, because she really hadn't done much research on skincare products, but she became increasingly interested in the ingredients of the acne-fighting serum she'd just heard about. This must be closely related to biology and chemistry.
"What did you put in that serum? Something that can treat acne but also burdens the skin?"
"Aren't you a top student? Don't you know?" Li Lechen asked back.
Zhou Mi seemed genuinely unaware of this. If she knew what could quickly clear acne, she could easily concoct it herself in a lab. If that were possible, what would be the point of having researchers at cosmetic companies?
Lost in thought, Li Lechen had already pushed Zhou Mi out the door, not even giving her a chance to look in the mirror. He figured he could stall for time; once the pimples were gone, he could boast about how good his products were, and the blemishes would be mostly covered up.
It's just pimples; applying some product makes them easy to get rid of.
Going downstairs, Li Lechen saw Wang Dazhuang's dog still sitting there wagging its tail. He was glad he'd been prepared; he knew the dog was still thinking about the satiety pills. So he took one out of his pocket and handed it to the dog.
The dog saw the meatball offered to it, sniffed it, and immediately barked excitedly twice. However, instead of swallowing it whole as Li Lechen had expected, it continued to wag its tail at him.
Li Lechen truly didn't understand dog body language; he only knew that wagging its tail meant it was being friendly. But this satiating pill would explode if left uneaten for 24 hours, so he couldn't just throw it on the ground—what if the dog wouldn't eat it?
While hesitating, Wang Dazhuang's dog suddenly ran off and barked happily at something not far away.
Looking in the direction the dog was barking, I saw another snow-white, short-legged lion dog running over with its tail wagging.
Li Lechen and Zhou Mi exchanged glances, then looked at Wang Dazhuang's dog, who was looking at Li Lechen with a fawning expression. Both of them were speechless.
Even the dog has a girlfriend, and he knows to try to please her with treats.
Sure enough, the female dog summoned by Wang Dazhuang's dog also loved Li Lechen's satiating pills. After eating them, she happily followed Wang Dazhuang's dog to play.
Li Lechen shrugged, not paying much attention, and took the bus back to school with Zhou Mi.
"bouncing!"
An elderly man with gray hair came down from a building and shouted at the white poodle.
The poodle looked longingly at Wang Dazhuang's dog, but eventually followed its owner away.
"Dr. Wang, please take care."
The man who was seeing the old man off watched respectfully as the gray-haired old man and his dog got into the car before turning back.
Because Li Lechen and Zhou Mi had discussed many physics problems that Zhou Mi was interested in along the way, Zhou Mi quickly forgot that she had applied something to her face, something that was very effective in clearing up acne. Of course, it was a minor matter, but she didn't think about it anymore, only thinking about looking in the mirror every now and then.
The two even plunged into the integrated laboratory as soon as they returned to school.
Zhou Mi has almost completely improved her water purifier. Apart from looking rough, it is indeed very practical.
To prove that he was also making efforts in research, Li Lechen contributed the water purification pills invented by Lai Haoren.
"Putting one in the water can purify the water," Li Lechen explained.
Zhou Mi said dismissively, "This is just a small, round piece of activated carbon. It's so tiny that it won't do any good."
If you really just roll activated carbon into such a small ball, it naturally won't have much of a water purification effect, especially if you just throw it directly into the water.
But Lai Hao-ren's invention, like the satiety pill and the cooling pill, emphasizes concentration and refinement. Eating one pill can keep you from being hungry for a year, let alone putting one pill in water to purify it.
So, under Zhou Mi's disdainful gaze, Li Lechen threw a water purification pill into the water that he had deliberately dripped with ink.
Visibly, the ink in the water began to gather towards the pill, and after a dozen seconds, the water unexpectedly became transparent. Although it might not meet drinking water standards, the result greatly exceeded Zhou Mi's expectations. So much so that Zhou Mi immediately concluded that if Li Lechen were to participate in this year's science and technology innovation competition with these water-purifying pills, he would definitely make it to the finals, if not win first or second place.
For no other reason than its small size and excellent purification effect, if it could be mass-produced and used to purify the water quality of ponds and lakes, it would be far better than installing any water purification equipment.
After Zhou Mi's suggestion, Li Lechen also thought it was a good idea.
Lai Hao-ren's inspiration for making water purification pills came from the activated carbon he provided. However, with the technology of 2000 and his previous experience in making those pills, the water purification pills are a magical yet practical product.
This kind of thing is perfect for competitions.
However, if we really want to use it in a competition, we still need to have a good talk with Lai Haoren to find out how this thing is made. We can't just keep buying it from the mall from now on.
Although, water purification pills and the like are now ubiquitous.
Just then, the smart assistant reminded him that Lai Haoren had left a message about the fact that there was still no supply of Class I water for today.
In the past few days, Li Lechen has been using bottles provided by Lai Haoren that can automatically decompose to fill mineral water as random prizes. However, he was too busy today and hadn't done so by this afternoon, which made Lai Haoren a little anxious.
Having made up an excuse about needing to use the restroom, Li Lechen returned to his dormitory.
In the past few days, Li Lechen would take advantage of Luo Li and Lin Kun going to class, and then use the excuse of studying to secretly fill up his dorm room with water. He would usually fill up four or five buckets a day.
Fortunately, the water delivery guy appeared in the dormitory building very frequently, so there was no problem with water buckets piling up. The careless Luo Li and the focused Lin Kun didn't even realize the huge amount of water their dormitory consumed every day.
But this wasn't a long-term solution, so Li Lechen kept thinking about whether he could find a better way while filling his bottle with water.
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