US$ 20.91
glutathione amino acid Glutathione | C10H17N3O6S | CID
Description
The food sector has seen innumerable examples of manufacturers adding desirable ingredients, Johnson says, of whole grains, adaptogens, and antioxidants to their processed foods
GSSG is further processed and recycled to GSH by the enzyme glutathione reductase [23, 24]

Despite the similarity of chemical structure of these two mycotoxins, Sterigmatocystin has been noted to be a less potent carcinogen than Aflatoxin B1 (AFB1)

doi: 10.1080/13510002.1995.11747007

No, you cant overdose, since B12 is water-soluble and any excess will be out in your urine in no time
