Glutathione Injection Before And After Glutathione IV Therapy: What You Need to Know COEM The Food and Drug Administration (FDA) warns the public on the dangers associated with the use of injectable lightening agents such as glutathione and Vitamin C. In the Philippines, several health and Glutathione Injections: Side Effects & Benefits Can glutathione injections be dangerous? The truth isn't what social media tells you Glutathione injections are generally safe only under medical supervision. But risks increase in the wrong conditions