"Little brother, what are you doing?" Liou Rumei asked, more confused.

"Rumei, this elixir is just an ordinary one with poor beauty effects," Ren Feng said. "Moreover, although long-term use won't cause toxicity, it contains an element that accumulates in the body, which is harmful."

"Really?" Liou Rumei picked up an elixir, looking puzzled. "How did you figure that out?"

Ren Feng said seriously, "This Beauty Elixir contains thirty-three types of herbs, with the main ingredients being Sakura Fragrance Flower, snow ginseng, loquat, jade lotus, deer antler..."

As Ren Feng listed the herbs in one breath, Liou Rumei's eyes widened, and the beautiful women around were also surprised.

How did he know?

"The combination of these herbs is problematic. Elixirs require a balance of yin and yang to be effective, but this elixir's proportions are improper. In addition, some ingredients don't have beauty-enhancing effects, especially the excessive amount of loquat, which weakens the efficacy."

Ren Feng picked up another Beauty Elixir as the beautiful women stood and listened to his lecture.

"Actually, this kind of elixir is supposed to help expel melanin from the skin, though it's effective, it's very weak. If certain ingredients and proportions can be altered, the effect should improve significantly."

"Of course, I don't mind doing this, because if it's just for beauty, there are better ways."

After Ren Feng finished speaking, he noticed Liou Rumei and the women staring at him in a daze.

Uh, why are you looking at me like that?

Ren Feng blinked. Could it be that they were awed by my deep knowledge?

Not easy, finally, the stuff old man taught me is useful for showing off.

Ren Feng felt satisfied, while Liou Rumei, after being stunned for a moment, showed a joyful expression, "Little brother, you know this too?"

Originally, Liou Rumei knew Ren Feng was skilled in acupuncture, but she didn't expect he could also tell the ingredients just by smelling the Beauty Elixir.

This is simply, too incredible.

"Yeah," Ren Feng said somewhat shyly, "Just learned it for fun when bored."

Before Ren Feng could finish speaking, Liou Rumei grabbed his hand and started walking outside.

"Come with me for a moment."

Ren Feng jumped, "Rumei, what are you planning? We agreed earlier. I'm here to sell skills, not myself! Rumei, even if you want that, you should at least pay first."

Hehe!

After being in a daze for a while, the beautiful women couldn't help but laugh.

This little brother is quite amusing.

Liou Rumei dragged Ren Feng into a room and closed the door.

"Rumei, you, you won't really want to do that to me, right?" Ren Feng looked as if he was shocked, with his hands covering himself.

Liou Rumei smiled, "Little brother, let's talk about that later, I have a serious question for you. Do you know how to improve the Beauty Elixir?"

"That kind of elixir, it's simple." Ren Feng nodded.

"Could you tell me how to improve it?" Liou Rumei's eyes sparkled, like bright stars.

"Sure, it doesn't matter to me, get me a pen, I'll write it down for you."

Ren Feng gestured grandly.

Liou Rumei's face lit up, she took out pen and paper, and Ren Feng quickly wrote the improvement method.

After finishing, Liou Rumei smiled as she took the recipe, then asked Ren Feng to wait a moment.

Afterward, Liou Rumei made a phone call, passed the recipe to the development team, and asked them to verify it quickly.

Back again, Liou Rumei smiled at Ren Feng, "Little brother, your improvement method needs validation, it might take some time."

"No problem."

"If it can really be improved, I'll give you a reward." Liou Rumei said charmingly.

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