Tested & trusted since 1984

Thorne brings scientific rigor, research expertise, and uncompromising standards to every product – so you can build a routine with confidence.

Train on what you trust

Explore NSF Certified for Sport® supplements built to support hydration, recovery, and daily performance – inside and outside the gym.*

Science over hype
Built on researched ingredients and purposeful formulations – not trends, shortcuts, or empty performance claims.
Quality you can verify
From sourcing to finished products, our standards are designed to support purity, potency, and label accuracy.
Rigor in every step
Setting the standard for proof – with testing that helps ensure what’s on the label is what’s in every serving.
Trusted at every level
Chosen by elite athletes, practitioners, trainers, and those who leave guesswork out of their supplement routine.

Our formulas are developed with a focus on ingredient quality and everyday wellness.

Our products are evaluated according to applicable quality and testing specifications.

We clearly label every ingredient and avoid unnecessary additives.

Our 3rd-party certified supplements are independently tested for safety and quality

Manufacturing excellence
Thorne maintains strong compliance with standards set by the FDA.
Trusted certification
Thorne’s campus is certified by NSF, a widely respected benchmark for quality in dietary supplements.
Global recognition
Thorne holds an A rating from Australia’s TGA, a strict global regulatory authority.
GRMA certified
GRMA recognizes companies that go beyond the minimum requirements for good manufacturing practices.