Pronounced "ah-sigh-ee", this small berry with a deep purple color is a potent source of antioxidants, including ferulic acid and epicatechin. According to in-vitro research, acai has a higher antioxidant content than cranberry, raspberry, blackberry, strawberry, or blueberry but that doesn't mean it is the best antioxidant around. According to the Web site www.naturaldatabase.com, "There is insufficient reliable information available about the effectiveness of açai." Other than functioning as an antioxidant, there is no research pertaining to açai having any effect on skin. Research is scant, but from what as been revealed, there is no legitimate reason to choose açai over many other antioxidants.