Glutathione and Vitamin C: Better Together? Performance Lab SETU Skin Renew Glutathione 500mg Tablets with Vitamin C Mixed Berry & Orange Combo From the Foxtale Lab, straight to your glow oven! We've mixed Vitamin C, folded in Glutathione, stirred soothing agents, and perfected the texture, all to serve you a serum that brightens in 8 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