About Thorne Research Health Supplements
At Thorne, we refuse to take short cuts. We have invested in doing comprehensive testing, sourcing the highest quality ingredients, creating a clean manufacturing process, and protecting the environment. Our team of medical professionals, researchers, and engineers lead with science, thoughtfully refining every product and process. That is why we are the brand trusted by healthcare practitioners, U.S. National Teams, and families around the world for more than 30 years.
Thorne cares deeply about where our ingredients come from. We partner only with suppliers whose practices emphasize quality, science, and responsibility. Better ingredients means better potency, absorption, and digestibility - and ultimately better health.
Test, test and test again
Four rounds of testing
We have invested in two state-of-the-art in-house laboratories that allow us to conduct four rounds of testing, while most competitors test only one or two times.
Raw materials and components. We test every raw material and component. In our in-house laboratory we screen for more than 1,000 contaminants.
In-process testing. We test every in-process batch for homogeneity and identity to confirm consistency.
Finished product testing. We test every finished product to ensure its identity, potency, and purity have been maintained and that there has been no microbiological contamination during manufacturing.
Stability testing. We test for product stability to confirm that our product will meet the label claim up to the product's time of expiration.