Leite S, Palhano G, Almeida S, Biavatti M. Wound healing activity and systemic effects of Vernonia scorpioides extract in guinea pig. Fitoterapia. 2002;73:496-500 pubmed
..Administered once a day for 30 days, 200 mg of a hydrogel containing 50% of extract did not accelerate the closure time, but improved regeneration and organization of the new tissue...