Albizia Julibrissin Bark Extract

Albizia julibrissin (silk tree) bark extract is a botanical antioxidant/anti-fatigue cosmetic extract typically used at low concentrations (about 0.1–2%), and it is not a deliberate irritant like acids or retinoids. However, as a complex plant extract containing multiple bioactive compounds, it carries a measurable risk of irritation or allergic contact dermatitis in reactive or eczema-prone patients, particularly with leave-on use and barrier impairment. Given limited robust human patch-test data compared with standard actives and the higher unpredictability of botanicals, a mild (0.4) score best reflects patient-safety caution. Safety Notes: In commercial leave-on eye and anti-fatigue serums/creams, Albizia Julibrissin Bark Extract is often used at very low levels (down to ~0.001%) when it is part of a multi-extract blend or when the supplier active is pre-diluted in a carrier, while many mainstream products land around ~0.1–1%. High-strength consumer products that feature it as a hero ingredient or use more concentrated actives (or multiple Albizia-containing complexes) are observed up to about 3% in leave-on formulations; rinse-off products typically use it lower due to short contact time.