What it is
Oldenlandia diffusa is a small herbaceous plant in the Rubiaceae family long used in traditional East Asian herbal practice. Its cosmetic extract contains iridoids, flavonoids, and other polyphenolic constituents and is included to help condition and comfort the skin. It appears in Korean skincare and sunscreen formulas as a botanical supporting ingredient.
Safety & warnings
The extract is generally considered well tolerated in cosmetic use. It is not a recognized fragrance allergen, and no comedogenicity concerns are established. As with all botanicals, rare individual sensitivity is possible.
Origin & sourcing
Natural. It is derived from the aerial parts of the Oldenlandia diffusa (Hedyotis diffusa) plant, native to East and Southeast Asia.
Questions everyone asks
What is Oldenlandia diffusa?
It is a small herb in the Rubiaceae family, also called Hedyotis diffusa, used in traditional East Asian herbal practice and as a cosmetic extract.
Why include it in a sunscreen?
It is added as a botanical skin-conditioning and soothing-positioned ingredient, drawing on its polyphenol content.