glutathione peroxidase chemical structure AZD5904 | Inhibitor Glutathione peroxidase 1 - Wikipedia

Scientists believe that oxidative stress is linked to several diseases, including inflammatory skin diseases such as psoriasis and eczema

As the most famous natural antioxidant, glutathione certainly has an impressive list of roles in the well-being of the human body: Pulls the reins on cell multiplication and cell death Gets rid of mercury from cells Helps the regeneration of vitamins E and C Acts as a detoxifying agent Helps with the metabolism of nutrients Keeps the immune system working properly Numerous studies have shown that low levels of glutathione are associated with oxidative stress, which, in turn, plays a huge role in the onset or progression of many diseases

The optimal frequency really depends on your goals and where you're starting from

So, when we say glutathione is reduced, we mean it can remove oxygen or ROS hence its being an "antioxidant" after which the glutathione becomes oxidized

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Al-Temimi AA et al