The '''ovary''' produces '''oestrogens''' and '''progesterone'''. Effects of oestrogens include a decrease in collagen production, a decrease in sebaceous secretion and decreased epidermal thickness. They also decrease hair growth, but increase skin pigment | The '''ovary''' produces '''oestrogens''' and '''progesterone'''. Effects of oestrogens include a decrease in collagen production, a decrease in sebaceous secretion and decreased epidermal thickness. They also decrease hair growth, but increase skin pigment |