Placental Lactogen, also known as human Placental Lactogen (hPL), is a Hormone produced by the placenta during pregnancy that plays a crucial role in Regulating maternal and fetal metabolism, Promoting fetal growth, and Preparing the mammary glands for lactation. It Functions similarly to growth hormone and prolactin, influencing Insulin Resistance and Lipid Metabolism to ensure an adequate supply of Nutrients to the developing fetus.