Rise-N-Shine Vitamin C Adult Gummies - 90-count. These delicious gummy vitamins contain 250 mg of vitamin C per serving, providing a great-tasting way to help support a healthy immune system. Vitamin C Adult Gummies work to help neutralize damaging free radicals in your body, and enhance iron absorption in the body. Additionally, vitamin C helps the body to manufacture collagen, which is essential for healthy skin. Gluten Free Formula.