There is little evidence that intravenous (IV) glutathione is effective for skin lightening, and it can have serious adverse effects. , Evidence, There is no evidence that IV glutathione is effective Glutathione and Side Effects: What You Need to Know for Better Health Performance Lab 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 5 Potential Side Effects of Glutathione Injections Understanding Glutathione Deficiency Invigor Medical