What is glutathione?

Glutathione is one of the main antioxidants produced by our body. It helps defend cells against oxidative stress and contributes to recycling other antioxidants, such as vitamin C. This explains the interest it attracts today, particularly in cosmetics.

Glutathione and skin beauty

Glutathione is often associated with a radiant complexion. By limiting oxidative stress, it may help regulate the production of melanin, the skin's pigment, and so contribute to a lighter, more even complexion. These effects are gradual: it generally takes several months of regular use to notice a difference, and results vary from person to person.

A naturally occurring antioxidant

Free radicals are unstable molecules produced by the body every day; sun, pollution and stress increase their number. In excess, they contribute to skin ageing. Glutathione is part of the body's natural defences against these free radicals, and its level naturally decreases with age.

Glutathione in a nutshell

• It is a tripeptide made of three amino acids: glycine, glutamic acid and cysteine.
• It is one of the most abundant antioxidants in the body.
• It is involved in the activity of glutathione peroxidase, an enzyme that protects cells from oxidative damage.
• Its oral bioavailability is debated, hence the interest in other forms, such as skincare and patches.