Thorne
The purity-obsessed premium brand clinicians and pro teams reach for.
A US premium supplement brand trusted by clinicians and athletes, with an unusually broad NSF Certified for Sport range.
Brand facts
- Founded
- 1984
- Headquarters
- Charleston, South Carolina, USA
- Parent / operator
- Thorne HealthTech
- Origin
- United States
About Thorne
A US premium brand founded in 1984 that grew from clinician-grade, high-purity supplements. Its clean, filler-free formulations and 100+ NSF Certified for Sport products make it a favorite of pro sports, and it also runs personalized testing.
What sets Thorne apart
Its edge is medical-grade purity plus one of the widest NSF Certified for Sport ranges — screened against 280+ banned substances — with a development track record that includes a Mayo Clinic collaboration.
Ingredient sourcing
Selects ingredients for potency and purity, avoiding unnecessary fillers and binders.
Manufacturing & quality
Manufactured in NSF-certified cGMP facilities it owns, with rigorous per-lot testing.
Certifications & testing
- NSF Certified for Sport (100+ products)
- NSF-certified cGMP (own facilities)
- TGA-registered (Australia)
Signature products
- Basic Nutrients (multivitamin)
- Magnesium Bisglycinate
- Creatine
- Whey Protein Isolate
- Basic B Complex
Focus categories
- Multivitamins
- Minerals
- Sports nutrition
- Gut & immune
- Test kits
Price positioning
Premium — for buyers investing in purity, certification and evidence.
Where to buy in Japan
Available via iHerb, the official site and Amazon.co.jp (including parallel imports).
Best for
Athletes and advanced users who put purity and certification first.
Things to keep in mind
Prices are high; tested athletes should confirm each product's certification.
Frequently asked questions
Why is Thorne popular with athletes?
Over 100 products are NSF Certified for Sport, lowering the risk of banned-substance contamination.
Can I buy Thorne in Japan?
Yes — via iHerb, the official site and parallel imports on Amazon.co.jp.
Prices are sample data. Check the retailer's site for the current price.