Solgar has been crafting nutritional supplements for generations - over 65 years. And, just like all our other supplements, U-Cubes Vitamin C Gummies benefit from the extensive science and knowledge behind our name. Each serving of tapioca based U-Cubes Vitamin C Gummies provides 500 mg, per 4 gummies of Vitamin C for Children 4 years and older and 250 mg, per 2 gummies for children 2 and 3 years of age. These beneficial immune support gummies can be taken alone or in combination with Solgar U-Cubes Multivitamin Gummies and Calcium with D3 Gummies. U-Cubes Vitamin C Gummies are made the Solgar way. That means that they're crafted in small batches to help ensure the highest quality. They're also non-GMO plus rigorously tested for safety and potency...but never animal tested. The result? A great-tasting immune support gummy that U can be sure is great for your children.