oral glutathione skin whitening effectiveness studies for the Glutathione for skin lightening -

The primary absorption site of curcumin in the gastrointestinal tract (GIT) is the small intestine (Luo et al., 2022)

Lancet Neurol 23(11):11191132

However, this random conjugation strategy leads to a heterogeneous distribution of drug-to-antibody ratios (DARs), typically ranging from 0 to 8, and the uncertainty of conjugation sites may affect antigen binding or pharmacokinetic stability

10.3389/fphar.2022.1031438 18

However, it requires highly specific antibodies, still involves relatively high sequencing costs, and is less effective at distinguishing specific methylation regions compared to other methods (66).In a multicenter study conducted in Italy, MeDIP-seq was used to analyze 26 affected and 26 unaffected relatives from 8 MS families (67)