Abstract Background: Essential oils have been recognized for their pharmaceutical applications as natural antioxidants. A combination of experimental and theoretical analyses was conducted on Bougainvillea formosa (B. formosa) stem and root barks essential oils. Methods: The essential oils obtained through hydro-distillation were identified and quantified using gas chromatography–mass spectrometry (GC-MS) and were found to exhibit different compositions. The antioxidant capacity of the es...