When it comes to the under eye area, efficacy is only half the story. That's why Dark Circle Eye Repair isn't just Dermatologist tested, but ophthalmologist tested, too. It's an extra step Glutathione Function in the Body Night Gel with Wine Extracts , Vitamin E , Vitamin C , Glutathione & Hyaluronic Acid Filter Skin Science Glutathione for Food and Health Applications with Emphasis on Extraction, Identification, and Quantification Methods: A Review