Glutathione is an important amino acid consisting of glutamic acid, cysteine and glycine. It plays a very important antioxidant role in cells, which can help scavenge free radicals and protect cells from oxidative damage. In addition, glutathione is also involved in physiological processes such as immune regulation, protein synthesis, and DNA repair in the body. It can be ingested through the diet or synthesized in the body by glutathione synthase. Glutathione supplements are widely used for antioxidant health.
The Common Forms and Actions of Glutathione
1. Reduced glutathione (GSH)
- Antioxidant effect: GSH is one of the most important antioxidants in cells, which can scavenge free radicals, stabilize intracellular redox balance, and protect cells from oxidative damage.
- Detoxification: GSH can combine with poisons to promote their metabolism and excretion, thereby reducing damage to cells and organs.
- Immune regulation: GSH is involved in regulating the function of the immune system, promoting the activity of immune cells and improving the body's resistance.
2. Oxidized glutathione (GSSG)
- GSH cycle use: During the anti-oxidation process, GSH can be oxidized to GSSG, and GSSG can be reduced to GSH through the action of enzymes, forming a GSH/GSSG cycle to ensure the stability of glutathione levels in cells.
3. Acetyl glutathione (Ac-GSH)
- Anti-aging effect: Ac-GSH has strong antioxidant capacity, which can reduce the damage of oxidative stress to cells and delay the process of cell aging.
- Skin care: Ac-GSH can be absorbed by the skin and has the functions of moisturizing, whitening, anti-oxidation and repairing damage. It can improve skin quality and reduce spots, wrinkles and other problems when used in skin care products.
Similarities and Differences
1. Structure: GSH is a substance naturally present in cells, while Ac-GSH is a compound produced by acetylation.
2. Function: GSH has various functions such as anti-oxidation, detoxification and immune regulation, while Ac-GSH is mainly used to provide GSH precursor and has the functions of moisturizing and anti-aging.
In summary, common forms of glutathione include reduced glutathione (GSH), oxidized glutathione (GSSG) and acetyl glutathione (Ac-GSH). GSH has anti-oxidation, detoxification and immune regulation effects, GSSG participates in GSH circulation, and Ac-GSH is mainly used for anti-aging and skin maintenance. These forms and functions together maintain the normal functions of cells and the body.
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