Excellent Source of Active B12. For over 45 years, our commitment to quality and purity has secured Sun Chlorella Corp. as a worldwide industry leader of chlorella. Sun Chlorella Corp. uses the nutritionally superior species of Chlorella pyrenoidosa that is Pulverized by DYNO-Mill. This exclusive process of breaking down chlorella's tough outer cell wall promotes bioavailability, digestion, and assimilation of Sun Chlorella's nutrients. Sun Chlorella is the only chlorella to contain a 90% pulverized cell wall without using heat or chemicals. Join millions of health conscious individuals and take Sun Chlorella every day!