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That said, one study did note that oral consumption of glutathione was well tolerated, and glutathione did help in other ways - specifically, the potential to reduce skin wrinkles and potentially improve skin elasticity

L.van der PolS

Yuyama K, Nakamura Y, Tateyama R, Arakaki R, Tsutsui T, Ishimaru N (2020) Study of the pharmacokinetics of eriodictyol-6- C --D-glucoside, a flavonoid of rooibos ( Aspalathus linearis ) extract, after its oral administration in mice

The results showed that ERK, JNK and P38 were all activated after MIRI (Figures 7A, B), among them, Sat1 inhibition only significantly suppressed the activation of MAPK/ERK, but Sat1 over-expression did not significantly promote the activation of MAPK/ERK (Figure 7B)