Glutathione is a non-protein thiol tripeptide compound formed by the condensation of glutamic acid (Glu), cysteine (Cys) and glycine (Gly) through peptide bonds. It is an active short peptide with a wide range of uses.
Glutathione is a thiol-containing antioxidant that can scavenge free radicals that affect human health. Modern medicine believes that free radicals are one of the main causes of aging and disease. The most abundant and most important antioxidant system in human cells is glutathione. Glutathione is the main force in scavenging free radicals and is hailed by scientists as the "master antioxidant" and "glutathione defense system." . Glutathione not only directly participates in scavenging free radicals, but also regulates external antioxidants such as vitamins C and E, maintaining their active (reduced) state.
Free radicals are a type of highly chemically active intermediate substances produced during the metabolism of human cells. They can attack proteins, DNA and lipid macromolecules in cell membranes, destroy the physiological functions of these biological macromolecules, and make cell membranes hard and brittle. Loss of function and shortens the life of cells; can cause gaps in the cell membrane, allowing pathogenic bacteria and viruses to invade the cells, further destroying the nuclear membrane, exposing genetic material, causing damage to genetic material, causing mutations and destruction; aggravating immune cell damage , making a damaged body with low immunity and many diseases more likely to occur.
In 1956, Professor Harman first proposed the free radical theory. He found that fishermen who worked under strong sunlight for a long time had a shorter life span. Further research proved that ultraviolet rays can stimulate the production of free radicals in the body, and free radicals can promote the aging of the physiological cycle and advance death. arrival. Under normal conditions, glutathione in human cells can combine with free radicals generated during human metabolism in a timely manner and convert them into low-active substances to eliminate the damage caused by free radicals to the human body. However, as people age, the body's own ability to produce glutathione weakens, and the amount of glutathione produced is not enough to remove free radicals in the human body in a timely manner. The excess free radicals begin to destroy biological processes in cells. Macromolecule substances, cell functions are affected, the human body begins to age, and diseases begin to increase; in addition, some external factors: such as ultraviolet radiation, drinking, smoking, environmental pollution, certain drugs, etc., can also cause the human body to produce too many free radicals , will increase the demand for glutathione in the human body. Once the supply of glutathione is insufficient, excess free radicals will damage people's health and affect their life span.