This is something potential clients often ask us. The placenta is often mistaken as a filter for toxins. The placenta does not function as a filter in a traditional sense. The placenta acts as a barrier separating the maternal and fetal blood supply, preventing the mixing of the two. Separating the maternal and fetal blood supply is vital to safeguard the fetus while allowing the exchange of oxygen, nutrients, and waste. At the same time, the pregnant person's body serves as the filtration system, while the placenta acts as a protective barrier. The placenta allows carbon dioxide to be transferred from fetal blood to maternal blood and is eliminated by the pregnant person's lungs. Urea is another waste product from fetal metabolism. Urea is transferred to the pregnant person's blood and filtered through their kidneys, which is then excreted in their urine. The placenta itself does not store or retain these toxins. It facilitates the exchange while the pregnant person's body is the filter.