Preamble Vit C & Glutathione EffTabs boost immunity, support collagen synthesis, and protect cells from oxidative stress while aiding detoxification. As the body’s “master antioxidant,” glutathione promotes skin health by increasing lighter melanin (pheomelanin) over darker melanin (eumelanin). Though naturally produced, glutathione levels decline due to UV exposure, poor diet, stress, and aging. Supplementation enhances anti-aging, skin lightening, and overall skin tone improvement. The Rationale combination of L-Glutathione+ Vitamin C L-Glutathione and Vitamin C work best together in a 1:2 ratio. Glutathione boosts Vitamin C’s antioxidant effects, while Vitamin C increases Glutathione levels.