US$ 24.82
0.5mg glutathione supplement NOW Foods , 500 mg, 120 Veg Capsules : Target NOW Glutathione Supplement, 500 mg,
Description
A.HawkinsJ.PolingH

It is not a matter of enteric coating, or stomach acid it is the digestive process itself that transforms glutathione into its unfavorable form

PubChem Compound Summary for CID 9941957 PubChem, Gurtner GC, Werner S, Barrandon Y, Longaker MT

It is less expensive than other forms of B12 which is why it is commonly used by both food and supplement manufacturers