Glutathione: Uses, Side Effects, Precautions and Dosage FDA highlights concerns with using dietary ingredient glutathione to compound sterile injectables FDA Glutathione injections are taken once a week for 6 weeks. They reduce melanin production and make skin lighter. The cost is 5000 per sitting for double dose glutathione with Vitamin c, b Glutathione Injections vs. Infusions Glutathione Injection Cost, Benefits, Side Effects