Mai Thi Nguyen-Kim (born 7 August 1987) is a German chemist, science communicator, television presenter and YouTuber.

In 2016, she began another channel, maiLab (originally named schönschlau), which is funded by German public broadcasters ARD and ZDF and as of September 2020 has over 1 million subscribers.

[8] She published popular videos about the COVID-19 pandemic on maiLab which made it into German YouTube trends and reached several million viewers within a short time.

[9] She also contributed a widely noticed commentary on this topic in the German news programme Tagesthemen (ARD)[10] and was invited as an expert in various talk shows.

[11] On German television, Nguyen-Kim presents the science show Quarks (WDR Fernsehen) since 2018, alongside Ralph Caspers.