Klamath lake algae has a number of bacterial contamination issues, making the super blue green algae there risky. for a long time a company called celltech aggressively sold their algae products to naturopathic doctors, and many patients became ill . It seems that this same company, lately discredited, decided to market the algae once again, under the name celltech, only now claiming further that it stimulates stem cell dissemination that can cure anything that ails you. would that it were true. please read carefully what the scientists have posted on this thread about the absence of real medical testing. there are many studies being conducted on foods and natural products to determine stem cell production. one I found online found that a combination of green tea extract, blueberry extract, catechin, carnosine and vitamin D3 can in fact stimulate stem cell production in bone marrow. but no testing was done to determine what specific health effects might result. Until there are legitimate medical studies and research released on this product, consider it a scam and illegitmate.