Acteoside (Verbascoside)

An in vitro study demonstrated that acteoside at 10–50 μM reduced LPS-induced TNF-α and IL-6 secretion by 50–70% in RAW 264.7 macrophages (He et al., Mol Med Rep, 2011). In vivo hepatoprotective studies in CCl4-injured rats showed significant reduction in serum ALT/AST and liver histological damage at 100 mg/kg oral dosing. Acteoside is found across multiple Rehmannia-containing and Cistanche-containing formulas, complicating attribution to any single herb source.

Acteoside demonstrates ORAC values among the highest measured for phenolic plant compounds. Anti-inflammatory activity in multiple in vivo models including carrageenan-induced edema and adjuvant-induced arthritis. Hepatoprotective effects confirmed in CCl4-induced liver injury models in rodents. Antiplatelet activity demonstrated in vitro (IC50 values comparable to aspirin in some models). Neuroprotective effects observed in cerebral ischemia-reperfusion models. Limited human RCT data specific to acteoside isolates; broader evidence base from plants containing it (olive leaf, desert cistanche).