Other brands only offer Vitamin C along with Glutathione
Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial
The example of GSH microspecies B and G (Table 2) shows that even minor changes in the sites of protonation can lead to differences in redox characteristics, this is all the more important in light of the complex, parallel protonation equilibria of these multibasic biomolecules: not only the protonation of the thiolate itself, its protonation fraction, and the concomitant redox behavior will be very sensitive to minor pH changes, but the protonation status of the adjacent basic moieties can influence the redox behavior by various inductive effects on the thiolate moiety
Robinson, D.S., Ying, S., Bentley, A.M., Meng, Q., North, J., Durham, S.R., Kay, A.B., Hamid, Q., Relationship among numbers of bronchjoalveolar lavage cells expressing messenger ribonucleic acid for cytokines, asthma symptoms, and airway methacoline responsiveness in atopic asthma, J
