Science is personal

  • Men's Health

  • Women's Health

  • Sleep

  • Multi-vitamins

    The difference is in our details

    • 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.

      Train on what you trust

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

      Tested & trusted since 1984

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

      Trusted by 100+ professional and U.S. National teams

      • Unrivaled

      • UFC

      • Team Penske

      • USA Triathlon

        We've proven better is possible

        • Science-ledformulations

          Our team of researchers and
          medical experts design every
          product for real outcomes.

        • Rigorous testing& quality

          Our supplements undergo
          multiple rounds of testing to
          ensure purity and potency.

        • Radical transparency

          We clearly label every
          ingredient and avoid
          unnecessary additives.

        • Trusted certifications

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