Glutathione vs. Vitamin C: Which Works Better for Skin Whitening? NOURRIR 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 HK Vitals Glutathione Tablets with Vitamin C for Skin Brightening Glutathione Injections: Cost, Benefits and Side Effects Blog