SR® Elderberry Complex provides 500 mg of ElderCraft® Standardized Black Elderberry Extract crafted from the highest quality berries in Austria. With 180 mg of Vitamin C & 7.5 mg of Zinc, these veggie capsules are an easy addition to your seasonal routine. Give your immune system a boost with Sport Research Elderberry Complex. They are guaranteed free of animal products, gluten and soy free and without any fillers or artificial ingredients.