Vitamin C vs Glutathione whats the difference? Both brighten the look of skin but they work in different ways. Vitamin C helps visibly brighten and improve the appearance of sun damage while Top 8 Glutathione Rich Foods For Glowing & Healthy Skin Can you use Glutathione and Vitamin C together? Absolutely! Glutathione, the powerful antioxidant produced by your body, pairs perfectly with Vitamin C. This combination acts as a protective barrier Achieve a radiant glow and support strong immunity with Watsons Glutathione, Vitamin C and Vitamin E! These three powerful antioxidants help boost collagen production and protect your skin from free radicals.