Mason Natural, their company was established with one priority, to provide their customers with quality, affordable, safe products for the entire family. Their team is always hard at work making sure that their products are manufactured to the highest standards while bringing new innovative products to the market place. They know your health and families health is your number one priority. There for over the years they have added over 400 vitamins and supplements to their expanding line to fit your health needs. Their products are manufactured and tested in the USA using state of the art machinery and laboratories that are GMP compliant, and they are certified by both ASI Food Safety Consultants and NSF.