

What’s Really Inside Supplements?
It started with a question I couldn’t stop thinking about: do supplement labels always tell the truth?
I began testing ingredients like tea polyphenols and puerarin in my small lab, using analytical methods such as HPLC.
Through these Bilibili videos, I share not just results but the process of discovery—showing how scientific thinking can make our everyday choices a little more informed, and a little more honest.
Testing Tea Supplements
Tea is often praised for its “antioxidant power,” but I wondered how much of that claim holds up in real data.
In this video, I extract and test tea supplements using UV-Vis and HPLC to measure actual polyphenol content.
What began as curiosity about marketing labels turned into a lesson on method validation and scientific transparency — showing how chemistry can cut through assumptions and reveal what’s truly inside our everyday drinks.
Puerarin supplements
Puerarin, a natural compound from kudzu root, is widely advertised for its health benefits — but are those claims reliable?
I designed an experiment to verify its content in commercial supplements, using reference standards and calibration curves for accurate quantification.
Through this process, I learned how data can challenge assumptions and how careful testing builds public trust in science, one sample at a time.
These projects reflect my belief that chemistry is not just a subject
—it’s a way to connect truth, transparency, and human well-being.
Created by Qingwen Lin
