It also is responsible for increasing the muscle mass and bone mass of women. Now, let's move on to the other type of female sex hormone known as progesterone. So progesterone is also a steroid hormone that means it's formed from cholesterol and it is lipid soluble. It passes across the cell membrane and it binds onto protein receptors inside the target cell. Now, progesterone is stimulated by the luteinizing hormone LH that is released by the anterior pituitary gland. So as our amount of LH in the blood increases, the amount of progesterone released also increases.