Before you spend money on glutathione, read this first. Topical, oral, injectable what actually works and what's just marketing? #funskincare #funingredientsinfographic101 FDA highlights concerns with using dietary ingredient glutathione to compound sterile injectables FDA Glutathione Injections Skin Whitening Glutathione IV Treatment The appeal of glutathione injections makes sense. Glutathione is one of the most important antioxidants your body produces, and levels drop as you age, making the idea of a quick boost tempting.