While some studies suggest that glutathione can lighten skin tone effectively, others indicate that the results may vary based on individual factors such as genetic predisposition, skin type, and the form of glutathione taken (reduced vs
doi: 10.1016/j.jdermsci.2019.05.003 51 MesitskayaDFSyrkinALAksenovaMGZhangYZamyatninAAJrKopylovPY
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The STAT3 factors induce the expression of SOCS proteins which consequently inhibit the function of JAK/STAT3 signaling, i.e., SOCS proteins exert a negative feedback on the JAK/STAT3 signaling induced by both insulin/IGF-1 and certain cytokine pathways
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