Vitamin C plus Rose Hips and Bioflavonoids Gummies by Nature’s Bounty contains 250mg of Vitamin C, a leading vitamin for immune support. Vitamin C is an important nutrient for the functioning of white blood cells, which are vital components of the immune system. Vitamin C Plus Rose Hips and Bioflavonoids Gummies from the trusted vitamin experts at Nature’s Bounty provide a sufficient dose of all three nutrients without the ingredients you may not want. Vitamin C is one of the best antioxidants for fighting the free radicals.