Soursop (Graviola), oregano, and black seed oil are potent botanicals commonly combined in herbal bitters and wellness blends. Soursop is prized for its antioxidant properties, oregano acts as an antimicrobial, and black seed oil provides immune and anti-inflammatory support. These ingredients are often taken together as concentrated drops or dietary supplements.For a closer look at how multi-herb blends, including soursop and black seed oil, are manufactured and utilized: