Investigation of antioxidant synergisms and antagonisms among thymol, carvacrol, thymoquinone and p-cymene in a model system using the Briggs-Rauscher oscillating reaction

► Investigation of antioxidant activities using Briggs-Rauscher oscillating reactions. ► We examine synergistic or antagonistic effect among antioxidant compounds. ► It was shown thymol carvacrol synergism and thymoquinone and p-cymene antagonism.