Our Quality
We create carefully considered products that are made without compromise.
Thorne is forging the path forward by confronting a category held back by bad science and by achieving levels of quality once thought impossible.
We invest in comprehensive testing, sourcing the highest-quality ingredients, creating the cleanest manufacturing process, and protecting the environment. While others in the industry care more about what their products look like than how they actually work, we believe that all the marketing in the world can’t replace real science, technology, and the industry-leading practices we use that have redefined nutritional health and wellness.
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Manufacturing the right way
We manufacture our own products to ensure complete supply chain transparency
We know that other brands don’t take the necessary steps to ensure their products meet the most rigorous standards. So we do. Although most companies in our industry outsource their product manufacturing, we invest extensively to make sure we own every step of the manufacturing process. Because we believe, when it comes down to it, that you can’t truly control the quality of a product – and therefore its efficacy and safety – if you outsource to someone else. There are no shortcuts taken at Thorne. We invest extensively in clean, green manufacturing practices. We refuse to use magnesium stearate or any other unwanted ingredient that inhibits absorption. We make our products in the United States with U.S.-imported materials. Our Summerville, South Carolina, facility has an outstanding record of compliance with third-party certifications of the highest ratings.
cGMP Certified
Thorne has an exemplary record of compliance with the Current Good Manufacturing Practices (cGMP), set by the U.S. Food and Drug Administration. Our manufacturing facility, warehouses, and shipping centers are regularly inspected and have passed every inspection without issuance of an FDA Form 483.
Certificate of GMP Compliance of a Manufacturer
NSF Certified
Thorne has an NSF Certified facility and manufactures more than 30 NSF Certified for Sport® products which gives athletes complete confidence in Thorne products. This is particularly important for the 11 U.S. National Teams we partner with as their exclusive provider of nutritional supplements.
NSF® Certificate
NSF Certified for Sport™ Certificate
TGA Certified
Thorne received an A1 rating from Australia's Therapeutic Goods Administration, widely recognized as the toughest regulatory agency in the world. Only a handful of U.S. companies have achieved certification, and Thorne is the first U.S. nutritional supplement company to be fully certified.
TGA GMP Certificate
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Sourcing exceptional ingredients
We develop better standards for higher quality ingredients
Thorne cares deeply about where our ingredients come from. Our research and development team travels the world, sourcing exceptional ingredients, maintaining oversight of origin, and providing complete supply chain transparency. We partner only with suppliers whose practices emphasize quality, science, and responsibility. Better ingredients means better potency, absorption, and digestibility – and ultimately better health.
Our formulas are designed to deliver the most absorbable forms of nutrients. More
Clinical Research
We validate new products through third-party clinical trials and testing. More
We test and formulate products with careful consideration for allergens and sensitivities. More
Incoming ingredients are quarantined in our facility until they are tested and verified.
We test for 760 contaminants to verify the identity, potency, and purity of each ingredient listed on our product labels.
Designing the next generation of health solutions all starts at the source. And we take sourcing seriously. Our research and development team searches the globe, sourcing the highest-quality ingredients from places like the pristine South Pacific off the coast of Peru to the lush tea plantations in rural China.
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Four Rounds of Testing
We have two state-of-the-art, in-house laboratories that enable us to conduct four rounds of testing, while most of our competitors test only once or twice.
Round 1
Raw materials and components
We test every incoming raw material and component. At our in-house laboratory we screen for more than 760 contaminants.
Round 2
In-process testing
In-process testing ensures that every ingredient in a product formula is what it should be, that the ingredients are in the right amounts, and that the ingredients are properly mixed throughout the entire batch of product being manufactured.
Round 3
Finished product testing
We test every finished product to ensure its identity, potency, and purity have been maintained and that no microbiological contamination occurred during manufacturing.
Round 4
Stability testing
We test product stability to confirm each product will meet its label claims up to the product’s expiration date.
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Sustainable Thinking
Our ethics extend to ecological and cultural responsibility.
Thorne believes the environment should never be compromised for the sake of business gain. At Thorne, doing our part to protect the environment and its resources goes hand-in-hand with our quality standards.
To make a game-changing impact on reducing our carbon footprint, we invested in R&D and produced a new technology to deliver supplements. Out of this effort we launched Effusio by Thorne – a revolutionary line of dissolvable supplement discs. Effusio products reimagine the way supplements are delivered and packaged – eliminating the reliance on plastic.
Protecting endangered botanical resources is how we source ingredients in a responsible way that is protective of our environment. We take pride in being a steward of the botanical ingredients we use in our products. If we learn a botanical ingredient is becoming endangered or find that over-sourcing is diminishing the quality of an existing supply, then we will discontinue the ingredient’s use in our product line and recommend a different botanical raw ingredient with a similar mechanism of action – but only after assuring the new ingredient has a quality profile that meets our standards.
Paperless "pick, pack, and ship" has essentially eliminated our use of paper and ink toner when processing customer orders. From our shipping boxes to the paper, fill-air pillows, and padded packs inside them, nearly all of our shipping supplies are made from recycled materials.
Real-life examples of how we live our commitment to quality everyday at Thorne.
An unheard-of ratio: 4 hours of production for every 16 hours of cleaning
Our top-selling Meriva product suite features curcumin. Because curcumin is hard to work with, it requires time-consuming methods when manufacturing products that contain it. A single 4-hour production run can require 16 hours of extensive follow-up cleaning.
We could save time and money by using processing aids that shortens the production time and makes cleaning quicker. But that would require using unnecessary fillers and additives – which goes against our belief to only design and provide optimal solutions for your health.
Preserving our ecosystem
Recently, we had a botanical ingredient – the kutki herb- that’s been used in supplements for centuries because of its role in supporting liver function.* During our meticulous testing process, however, we began receiving batches of kutki that didn’t meet our specification. Our lab tests showed us it wasn’t the species that we wanted – it was a similar species, but not the exact species – and it was adulterated with lesser ingredients, making it impure. When we looked into it, we found the reason was that the particular kutki species we wanted was endangered. So we couldn’t continue using it. It wouldn’t be right. We immediately began to reformulate and looked for an equally safe and efficacious alternative ingredient, although it caused us to go on backorder for several products. This wasn’t the first time Thorne has done this – and it won’t be the last.
More to explore