benefits of glutathione pills for skin lightening: a regnant myth or evidence-based verity? Topical vs Oral Glutathione: Which
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J Am Sci 9(10):107114 Patil VV, Dhurvey VT (2015) Exposure to sodium fluoride affects thyroid follicular cells in albino rats

Moreover, when a SelP-knockout mouse was fed a normal Se diet, it was marked by a substantial reduction in Se levels, particularly in the central nervous system and testes, while Se content was only slightly affected in the kidneys and other organs and tissues
Step 3: Production of Eumelani, the dark, brown pigment associated with hyperpigmentation and tanning [4]

It does its job by emitting its electron and thus stopping the chain reaction of free radicals