About K-Beauty Codex

Each page takes one ingredient or annex of Korea's functional cosmetics codex (MFDS) and sets out the official assay range and test requirements, with the legal source linked. We do not rank or sell products; this is a reference for what the Korean rules actually say.

Pages are checked against the cited official source before they go up. If a source changes, the page is corrected and the check date updated. Corrections are welcome through the contact page.

This site is run by SJ AI Studio, an independent publisher. It is not affiliated with the bodies whose documents it cites.