Background: Jinten hitam (Nigella sativa L.) oil is a liquid made from Jintem hitam seeds which has beenknown to contain Thymoquinone having anti-cancer efect. Many cancer patients turn to cheaper alternativetherapy including the traditional therapy. The objective of this experimental was to evaluate anti-cancereffect of Jinten hitam seeds oil in adenocarsinoma mammae C3H mice.Design and Method…