This work describes the antioxidant evaluation through the DPPH free radical methodology of commercial available tinctures indicated for different diseases and purchased in commercial pharmacies. All of those diseases have always being caused by excess or accumulation of free radicals. It was noteworthy the coherence between the botany family in which the plant of each tincture is inserted as well as its chemical composition with the antioxidant activity observed. In the cases where this statement could not be shown, it was proved by chromatographic methods that the tinctures were not properly prepared or even it constituted a case of adulteration.
Antioxidant activity; commercial tinctures; chemical compositions; adulterations
