ST. LOUIS — Cincinnati Reds pitcher Bronson Arroyo reaches into his locker, pulls down a clear cellophane bag and slowly opens it. He shakes out the contents like a kid on Halloween night. There are different-colored pills, powders, liquids, proteins, caffeine concentrates and ginseng, products such as creatine, Triflex and xelR8 found at local vitamin stores. Most of the products have not been approved by Major League Baseball for use by players, Arroyo says. Some of the items have the potential to trigger a positive test under baseball's performance-enhancing drug policy. Arroyo takes them anyway.