do steroidal inhalers effect glutathione levels S-transferases and their implications in the lung diseases asthma and chronic obstructive pulmonary disease: Early life susceptibility? Frontiers | Steroid hormone regulation

It is essential to have the right balance of oxidants in the cell, and selenoproteins are an important part of the balance.[ref] In general, increasing the intake of selenium has been shown to increase the activity of glutathione peroxidase 1 (GPx1), an important antioxidant.[ref] Dont go overboard on selenium, though read the section on toxicity before supplementing

Burnett AL, Aus G, Canby-Hagino ED, Cookson MS, DAmico AV, Dmochowski RR, et al

Counterfeiting Risk This is a serious concern

All of these situations require a solvent that carries zero microbial load and acts as a preventative against microbial growth