EARTHRISE SPIRULINA NATURAL DIETARY SUPPLEMENT IS DESIGNED TO SUPPORT YOUR BODY'S IMMUNE SYSTEM, BRAIN FUNCTION AND CARDIOVASCULAR HEALTH. EACH SIX-TABLET SERVING DELIVERS THE ANTIOXIDANT EQUIVALENT OF APPROXIMATELY FOUR SERVINGS OF VEGETABLES. THIS 180 TABLET BOTTLE CONTAINS 30 SERVINGS; EACH TABLET GIVES YOU 500 MG. OF DIETARY SUPPLEMENT.