All of our supplements are manufactured here in the United States, but ingredients can come from many countries. Many essential ingredients are simply not manufactured domestically and must be sourced internationally.

The FDA requires testing of all ingredients upon arrival at our manufacturers. This procedure ensures that ingredients in nutritional supplements meet exceptionally high quality standards.a

We frequently get questions about ingredients from China. Here’s the simple fact: avoiding nutritional ingredients from China would virtually eliminate the world’s supply of Vitamin C and many B vitamins. In the end it makes little difference where ingredients come from because testing remains the only way to consistently ensure quality. Our ingredients, regardless of country of origin, are tested rigorously for quality and safety.

All supplements manufactured by Health Products Distributors, Inc. have ingredient specifications that meet or exceed United States Pharmacopeial Convention (USP) standards. All of the ingredients we use in our products meet the highest standards available.For more info, see: