Glutathione is more focused on lightening dark spots and reducing melanin production, while niacinamide helps with skin texture, inflammation, and even pigmentation
In a healthy body, about 90% of your glutathione should be in the reduced (GSH) state
EGCG as a chemopreventive agent can modulate angiogenesis and apoptosis by downregulation of various signaling pathways such as Vascular Endothelial Growth Factor (VEGF), Epidermal Growth Factor Receptor (EGFR) and cell cycle regulatory proteins such as Mitogen-activated protein kinases (MAPK) (Shankar et al
Notably, however, the unstable product flavan-3,3,4-triol ( 4 ) is converted mainly into the by-products epidihydroquercetin ( 9 ), dihydroquercetin ( 10 ) and quercetin ( 11) 13 , while the transformation into the coloured anthocyanidin has only been observed as a minor side reaction in vitro 11,12,13 or in vivo by engineered microorganisms 6,16