swanson l-glutathione cream with Setria 2 fl oz Cream B-Hive Radiant Glutathione Cream, Packaging

Because they are smaller and simpler than full proteins, your body can absorb and utilize them efficiently

What is glutathione, and why is it important

A laboratory synthesizes it for the first time, discovers it seems to have interesting properties, and spends many years studying it in rodents

Vallee, Proceedings of the National Academy of Sciences of the United States of America 98, (2001) 23172322

In short, the difference between oral supplementation and injection is that an injection will provide a higher dose of B12 at regular intervals, whilst oral supplements have a lower dosage and can be taken every day

Roza, A