Usana is known for its potency and the guidelines it abides by for manufacturing. In my opinion if you are going to invest in something good let it be the best. Usana is not an organic supplement and the reason being is because many people are allergic to organic ingredients. Lyle McWilliams is a Canadian Scientist that did a study on Usana nutritional supplements. He is a third party that has done a study on over 1,500 supplements and compared them to each other.