All of the ingredients in our Luminary Vitamins nutrient gummies are supported by clinical reasearch on fertility. All of our products are also lab tested, made in a Food and Drug Administration (FDA) registered facility, and GMP Certified. GMP stands for good manufacturing practice, and it is a system that ensures products consistently adhere to quality standards. GMP regulations were put in place by the FDA to minimize the risks involved in producing goods, such as supplements and other pharmaceuticals.