Spirulina is a favorite whole-food supplement among vegetarians thanks to its high protein content (up to 60% by weight) and its complete profile of essential amino acids. It's also a source of energizing B vitamins, valuable antioxidants like superoxide dismutase (SOD), soothing GLA (gamma-linolenic acid), cleansing chlorophyll and more. Astaxanthin, called the "King of Carotenoids," is among today's most sought- after supplements due to its endorsements from world-renowned scientists, recognized medical experts and famous media personalities. The astaxanthin found in our new Swanson Green Foods Spirulina and Astaxanthin is patented for use in eye health formulas and carries with it all the documented health benefits of astaxanthin for cardiovascular health, brain health and beyond.