Remember that cysteine is one of the precursors to glutathione, so the idea is that ingesting NAC as a supplement indirectly increases your glutathione levels
Educational information only
Moreover, glutathione also promotes the formation of pheomelanin, a lighter form of melanin, which contributes to a lighter skin tone
This is mechanistically demonstrated in breast cancer models, where SFN, by activating the Nrf2 pathway, reduces the secretion of prostaglandin E2 (PGE2) from tumor cells, thereby triggering MDSCs to switch from an immunosuppressive to an immunogenic phenotype and inhibiting their expansion (76)
Supplements and foods reinforced with this vitamin contain B12 in its free form, which makes it more readily available for absorption in your system