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C-D-ZINC Default Category Douglas Labs 120 Capsules
C-D-ZINC Default Category Douglas Labs 60 Capsules
C-D-ZINC Default Category Douglas Labs




    Douglas Labs C-D-ZINC

    Support for cellular health, immune function, and daily wellness. C-D-Zinc provides the essential vitamins C and D plus zinc to support a healthy immune system.


    Serving Size: 1 Vegetarian Capsule Amount Per Serving
    Vitamin C (as ascorbic acid) 800 mg
    Vitamin D3 25 mcg
    OptiZinc® (as OptiZinc® monomethionine) 1.5 mg

    Other Ingredients: Other ingredients: Hydroxypropyl methylcellulose (capsule] and ascorbyl palmitate

    Suggested Use

    As a dietary supplement, adults take 1 capsule, 1-2 times daily with a meal or as directed by a health professional.

    More Info

    Vitamin C is an essential micronutrient that supports the immune system by providing antioxidant activity against reactive oxygen species. Vitamin C supports the body's defense system by enhancing white blood cell function and activity, as well as promoting interferon levels, antibody responses, and secretion of thymic hormones. Additionally, it maintains healthy mast cell function and supports lymphocyte formation.‡ 

    Vitamin D provides general cellular support, in part by supporting immune cell activity, and maintaining healthy cell metabolism. In a clinical trial, Vitamin D supplementation was shown to support Vitamin D-regulated genes associated with immune function, response to stress, and DNA repair. Vitamin D also supports healthy immune cell activation due to the presence of vitamin D receptors in immune cells, including lymphocytes and macrophages.‡

    Zinc is a cofactor for over 300 enzymes and is essential for a wide range of physiological functions, including the regulation of intracellular signaling pathways in innate and adaptive immune cells. The homeostasis of zinc is particularly important for cell maturation and cell differentiation, cell cycle progression, and the proper functioning of immune cells. In addition, zinc supports the body’s defense system by promoting healthy neutrophils, natural killer cells, and T-lymphocyte function.