Chinese Chlorella is a natural algae sea food collected from very deep regions in the oceans which contains over 300 times the beta-carotene of a carrot, and other key vitamins, minerals and essential amino acids. Chinese Chlorella is very important in cancer fighting whereas 50 percent of cancers are associated with poor diet. It has been found by Jitsukawa et al. that a swelling is followed by erythematopurpuric lesions on sunexposed areas of the body developed in five patients ingested Chlorella pellets. The photosensitizing agent contained in Chlorella pellets was proved to be pheophorbidea and its ester.