Hello! What I found: "The progesterone in Utrogestan is suspended in oil so that it can be better absorbed by the body. When progesterone is in powder form, it is more likely to be broken down by the digestive system before it can be absorbed. However, when it is suspended in oil, it can be more easily absorbed through the lining of the intestine. This allows the progesterone to enter the bloodstream more quickly and effectively, providing better support for the pregnancy. Additionally, suspending the progesterone in oil helps to protect it from degradation by enzymes in the gut. Therefore, Utrogestan provides a more effective form of progesterone that is better able to support a healthy pregnancy". Hope it helps!