Thioredoxin and thioredoxin reductase are evolutionarily conserved antioxidant enzymes that protect organisms from oxidative stress. These proteins also play roles in redox signaling and can act as a redox-independent cellular chaperone. In most organisms. there is a cytoplasmic and mitochondrial thioredoxin system. https://herbsdailyes.shop/product-category/nasal-spray/