Onka Farma 100% Pure Black Cumin Oil Cold Pressed 100% Natural Black Cumin (Nigella sativa seed oil) Volume: 250 ml (2 Packs) Content: 100% pure black cumin oil obtained by cold pressing method. 2 x 250 ml *Contains at least 25% Thymoquinone. *Thymoquinone - It is a substance that directly determines the quality of black cumin seeds and is found in very low amounts in low quality black cumin seeds. *A quality black cumin oil should contain at least 25% Thymoquinone. That's why we carefully select the black cumin seeds we use for oil production. (*Thymoquinone value is stated according to the analysis result of the relative (%) components of black cumin seed.) Thymoquinone is a bioactive phenolic compound obtained from the essential oil of Nigella sativa L. (black cumin) seed and has high antioxidant properties, high biological activity and low systemic toxicity. It is a very valuable molecule.