Extract Enriched with Ursolic Acid Ameliorates UVB-Induced Photoaging in .

Ultraviolet B (UVB) exposure can contribute to photoaging of skin. is rich in ursolic acid (UA), which is beneficial to the prevention of photoaging. Because UA is hardly soluble in water, the extract (COE) was obtained using water as the antisolvent to separate the components containing UA from the crude extract of .