Spirulina polysaccharides (SPP) and Spirulina phycocyanin (PC) can enhance the hematopoietic function of the bone marrow system, stimulate the formation of erythroid cell colonies, and increase the absorption and utilization of iron; promote the proliferation and differentiation of bone marrow hematopoietic cells, directly act on hematopoietic stem cells (CFU-S) and granulocyte-monocyte progenitor cells (CFU-GM), enhance the renewal of CFU-S, and promote the differentiation of CFU-GM; enhance the activity of cell colony stimulating factor (CSF), and CSF can further promote the differentiation of CFU-GM; specifically increase the body's normal blood cell counts (white blood cells, red blood cells, platelets, macrophages, lymphocytes, etc.). Regulate immune function: The anti-peroxidation micronutrients such as SPP, PC, ?-carotene, vitamin E, organic selenium, superoxide dismutase (SOD) contained in it can fully regulate the body's immune function, reduce or eliminate the inhibition of cyclophosphamide on the body's immune system; it can enhance the proliferation activity of bone marrow cells, which is conducive to the formation of immune effector cells such as macrophages, T cells and B cells; it can significantly improve the activity of the body's endonucleases, strengthen the repair and synthesis of the body's DNA, and thus regulate the body's nonspecific immunity, humoral immunity and cellular immunity. Studies have shown that spirulina can reduce the mortality rate of rats with anaphylactic shock and significantly reduce the level of histamine in the blood, inhibit passive skin allergic reactions caused by anti-DHPIgE and the release of histamine by peritoneal mast cells. By regulating the expression of TH1 and TH2 cytokines, correcting the imbalanced TH1/TH2 cytokine network, reversing the TH cell differentiation deviation in the body, and promoting the restoration of the balance of the cytokine ratio secreted by TH1/TH2; reducing the synthesis of IgE and thus preventing the occurrence of allergic inflammation. Inhibit tumor cell growth and replication: SPP, PC and organic selenium enhance the body's ability to kill tumor cells by enhancing the body's immunity and antioxidant capacity. PC has obvious photosensitivity, which can increase the sensitivity of tumor cells to light, thereby improving the killing effect of laser on tumor cells. Selenium can stimulate the body's immune system, activate natural killer cells and macrophages to produce a large amount of tumor necrosis factor, accelerate the necrosis and reversal of tumor cells, inhibit the transcription and protein synthesis of cancer cells, and limit their metabolism. Anti-radiation effect: SPP is a multivalent alcohol that can keep the spatial conformation of low-concentration repair enzymes stable, thereby protecting the activity of the enzymes. PC has significant anti-radiation and anti-mutation effects. The anti-radiation effect of Spirulina is also based on the existence of a relatively complete DNA repair system in SPP, which can significantly increase the activity of the body's endonucleases and enhance the DNA repair of damaged cells, and can protect bone marrow cells from radiation damage. Regulate blood lipids: It is rich in excellent unsaturated fatty acids such as gamma-linolenic acid and linoleic acid. Gamma-linolenic acid can bind and transport cholesterol in the blood to prevent it from accumulating in blood vessels. Essential fatty acids can also promote the synthesis of high-density lipoprotein. At the same time, they are the precursors of the synthesis of prostaglandins. High-density lipoprotein and prostaglandins can further participate in the body's blood lipid regulation.