Process
4 rounds
of testing
We have two in-house laboratories that enable us to conduct four rounds of testing, from analyzing the purity of raw materials to confirming the shelf life of finished formulas.
Product
0 unnecessary
ingredients
Every Thorne formula is guided by our “No List” of fillers, additives, and allergens that we refuse to use in our products. The “No List” speaks to our commitment to provide clean, high-quality nutritional supplements that contain the purest possible ingredients to support your health. See the “No List” here.
Campus
549,000+ square foot
manufacturing space
Our nutritional supplements are manufactured in the United States, at our state-of-the-art campus in Summerville, South Carolina.
People
65,000+
training hours
More than 65,000 hours are dedicated annually to training employees. Training topics include current Good Manufacturing Practices (cGMP), gowning, quality control, and more. 
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Our processes
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