The Original Barley Green Caplets with Kelp Organic Barley Green Caplets with Organic Brown Rice and Seaweed. Dr. Yoshihide Hagawara's Original BarleyGreen Formula with 30 Years of Scientific Research. The Known Health Benefits of Organic Herb Powder Organic Barley with Seaweed from Dr. Hagiwaras BarleyGreen include increased mental clarity; digestion and regularity; skin, hair and nails; and healthy cardiovascular support. It is rich in essential nutrients and antioxidants that help delay the effects of water.