Glutathione is a powerful antioxidant found in every cell in the body. It is made of three types of molecules known as amino acids.

Amino acids combine in different patterns to make all of the proteins in the body.

One unique thing about glutathione is that the body is able to make it in the liver, which is not true of most antioxidants.

Glutathione has many important functions, including:

• making DNA, the building blocks of proteins and cells
• supporting immune function
• forming sperm cells
• breaking down some free radicals
• helping certain enzymes function
• regenerating vitamins C and E
• transporting mercury out of the brain
• helping the liver and gallbladder deal with fats
• assisting regular cell death (a process known as apoptosis)

Researchers have found links between low levels of glutathione and some diseases. It is possible to increase glutathione levels through oral or intravenous (IV) supplementation.