The Albizia julibrissin, also known as silk tree or silk acacia, has silky stamens of creamy white, light to dark pink colour and is widespread from Iran to eastern China. Because the silk tree collapses its leaves at night or during dry periods, i.e. "sleeps", it is also called the sleeping tree.

Like many plant extracts, Albizia julibrissin is valued for its antioxidant properties. In cosmetic products, the active ingredient acts as an energy booster, improves cell respiration and counteracts the formation of wrinkles. In addition, the extract obtained from the bark of the silk tree improves the natural skin protection barrier and promotes collagen and elastin production, thus reducing signs of skin fatigue.

As a component of Beautifeye®, Albizia julibrissin counteracts dark circles under the eyes and bags under the eyes, leaving the skin looking fresh and youthful.