Absolutely, and in fact, Vitamin D and Glutathione injections work beautifully together. This combo is one of our most requested treatments at the clinic in Cirencester because it delivers both wellness and What To Avoid While Taking Glutathione 1. Immune Defense at the Cellular Level Zinc and Vitamin C are foundational for immune cell signaling and response, while glutathione supports intracellular defense mechanisms. Together, they help the body stay resilient 5 Nutrients to Know This Cold and Flu Season Olympia Pharmaceuticals POWER PAIR GLUTATHIONE & VITAMIN D An important connection Studies have shown that adequate levels of glutathione are important for the bioavailability of vitamin D absorption. Meaning, if you don't