THORNE
Tested & trusted since 1984
Thorne brings scientific rigor, clinical expertise, and uncompromising standards to every product – so you can build a routine with confidence.
4 roundsof testing
Every supplement we manufacture undergoes four rounds of testing toensure every supplement meets our high standards. As soon as a raw materialenters our facility, we test its identity and purity. Whether it’s mixingingredients, testing a finished product before it’s shipped, or monitoring itsshelf life, quality guides our every decision.
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Raw materials and components
We test every raw material and component. In our in-house laboratories, we screen for raw material contaminants.
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In-process testing
n-process testing helps ensure the correct amount of ingredients are used in our formulations, and we stringently check for any bottle, label, or capsule defects throughout the manufacturing process.
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Finished product testing
Before going to market, finished products are tested to confirm the identity, potency, and purity of the ingredients, and to confirm that no microbiological contamination occurred during manufacturing.
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Stability testing
We test a product's stability to confirm it will meet its label claim up to the expiration date.
