glutathione and hashimoto's in the Brain Hashimoto's Hypothyroidism and Glutathione

Even peptides that closely mirror those made by the body itself can have different effects when administered like a drug, Eileen Kennedy says

Vitamin B-12 Injectable Solution 1000mcg/mL is a prescription cyanocobalamin injection used in dogs, cats, horses, cattle, sheep, and swine as a supplemental source of Vitamin B12. It is indicated for B12 deficiency linked to poor dietary intake, intestinal malabsorption, cobalt deficiency in ruminants, and gastrointestinal diseases that impair absorption

Glutathione 1500mg: High-Yield Master Antioxidant Research Compound

The Brightening Complex combines both functions

Cyanocobalamin | Drugs | BNF