American River Nutrition is the producer of DeltaGold tocotrienols, the most beneficial form of vitamin E for cardiovascular and metabolic health, as well as other health benefits. It is also the only source of tocopherol-free tocotrienol derived from the annatto plant. American River products are manufactured by the company in their 24,000 sq. ft. Hadly, MA GMP compliant facility, using a proprietary process leading to the purest form of natural tocopheral-free tocotrienols available