What Is Folic Acid Powder Folic acid powder is a powdered, synthetic form of vitamin B9 (folate) that has higher rates of absorption than naturally occurring folates. Vitamin B9 is an essential vitamin that the human body cannot produce on its own. The FDA requires certain foods, such as bread, crackers, and cereal, to be fortified with folic acid because of the critical role in the body. Folic acid powder (vitamin B9) is water soluble and can be used by the body in the same ways as naturally occurring folates, including the formation of new cells. Folic Acid Powder Benefits Folic acid powder supports many important functions in the human body and is an important part of prenatal supplements. Folic acid powder also helps support cardiovascular health and may even help maintain healthy mood and support brain function.*