Sheep placenta powder dark red is the best. Sheep placenta is the mother sheep pregnant fetus is responsible for maternal and fetal blood and nutrient exchange of tissues, can produce a very large number of active substances, sheep placenta powder is sheep placenta as raw material made of sheep placenta lyophilized powder, sheep placenta lyophilized powder contains 18 kinds of amino acids, of which 8 kinds are essential to the human body.