Reasons to Get a Glutathione Injection Century Medical & Dental Center Subcutaneous Injection Sites and Instructions for Safe Self Administration Glutathione IV: The Ultimate Antioxidant for Detox and Skin Subcutaneous Injection: What It Is and How to Give One How to Self Administer Subcutaneous & Intramuscular Injections A single Glutathione IV drip gives you two amazing benefits at once. This powerful master antioxidant helps detox your liver while also working to brighten your skin from the inside out.