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Science-Verified Brand

Thorne

Thorne is a premium supplement brand trusted by Mayo Clinic, Cleveland Clinic, and 11 U.S. Olympic teams. NSF Certified for Sport across their athletic line, with every product third-party tested.

Founded 1984New York, NY155 products
·
Third-Party TestedNo Proprietary BlendsClinical DosingPublished COAs4/4 Verified

Thorne meets our Science-Verified criteria with NSF Certified for Sport products, full ingredient disclosure, clinical...

Thorne meets our Science-Verified criteria with NSF Certified for Sport products, full ingredient disclosure, clinical dosing backed by Mayo Clinic research partnership, and published COAs.

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THORNE - Vitamin D3 with a Metered Dispenser - Liquid Vitamin D Vegan Supplement - Supports Healthy LiquidVitaminsLiquid

THORNE - Vitamin D3 with a Metered Dispenser - Liquid Vitamin D Vegan Supplement - Supports Healthy

NSF Certified for Sport, NSF GMP

4,000 IU per liquid · - Vitamin D3 with a Metered Dispenser

Vitamin D3 with a Metered Dispenser — Liquid Vitamin D Vegan Supplement - Supports Healthy Bones, Teeth & Muscles, Plus Cardiovascular & Immune Functi

4.6 (42)
$24.00$0.80/serving
THORNE - Nutrient Essentials Duo - Iron Bisglycinate & B-Complex #12 for Energy Support and Blood BuVitamins

THORNE - Nutrient Essentials Duo - Iron Bisglycinate & B-Complex #12 for Energy Support and Blood Bu

NSF Certified for Sport, NSF GMP

- Nutrient Essentials Duo

Nutrient Essentials Duo — Iron Bisglycinate & B-Complex #12 for Energy Support and Blood Building - 60 Servings

4.9 (35)
$42.00$0.70/serving
THORNE - Plant Protein - 22 Grams of Vegan Protein Powder - Pea, Rice & Chia Seed Protein with Compl PowderProteinPowder

THORNE - Plant Protein - 22 Grams of Vegan Protein Powder - Pea, Rice & Chia Seed Protein with Compl

NSF Certified for Sport

- Plant Protein

Plant Protein — 22 Grams of Vegan Protein Powder - Pea, Rice & Chia Seed Protein with Complete Amino Acid Profile - NSF Certified for Sport - Vanilla

4.6 (30)
$49.00$2.45/serving
THORNE - SynaQuell - Brain Support with BHB, BCAAs, CoQ10, DHA & Nicotinamide Riboside - Supports HeOmega-3

THORNE - SynaQuell - Brain Support with BHB, BCAAs, CoQ10, DHA & Nicotinamide Riboside - Supports He

NSF Certified for Sport

- SynaQuell

SynaQuell — Brain Support with BHB, BCAAs, CoQ10, DHA & Nicotinamide Riboside - Supports Healthy Brain Structure & Cognitive Function* - NSF Certified

4.3 (24)
$142.00$4.73/serving
THORNE - Advanced Pre-Workout - Pre-Workout Powder Supplement with Amino Acids, Naturally Derived Ca PowderPerformancePowder

THORNE - Advanced Pre-Workout - Pre-Workout Powder Supplement with Amino Acids, Naturally Derived Ca

NSF Certified for Sport

- Advanced Pre-Workout

Advanced Pre-Workout — Pre-Workout Powder Supplement with Amino Acids, Naturally Derived Caffeine, Alpha GPC & Beta-Alanine - Rainbow Sherbet - NSF Ce

4.4 (22)
$55.00$2.75/serving
THORNE - Essential Wellness Trio - Methylation Support + Magnesium CitraMate + Vitamin D-5000-60 SerVitamins

THORNE - Essential Wellness Trio - Methylation Support + Magnesium CitraMate + Vitamin D-5000-60 Ser

NSF Certified for Sport, NSF GMP

- Essential Wellness Trio

Essential Wellness Trio — Methylation Support + Magnesium CitraMate + Vitamin D-5000-60 Servings

4.9 (19)
$104.00$1.73/serving
THORNE - Sleep Support Duo - Magnesium Bisglycinate Powder + Melaton-3 for Restful Sleep PowderMineralsPowder

THORNE - Sleep Support Duo - Magnesium Bisglycinate Powder + Melaton-3 for Restful Sleep

NSF Certified for Sport, NSF GMP

- Sleep Support Duo

Sleep Support Duo — Magnesium Bisglycinate Powder + Melaton-3 for Restful Sleep - 60 Servings

3.9 (15)
$68.00$1.13/serving
THORNE - SynaQuell+ - Brain Support for Post-Impact - BHB, BCAAs, CoQ10, DHA & Nicotinamide RibosideOmega-3

THORNE - SynaQuell+ - Brain Support for Post-Impact - BHB, BCAAs, CoQ10, DHA & Nicotinamide Riboside

NSF Certified for Sport

- SynaQuell+

SynaQuell+ — Brain Support for Post-Impact - BHB, BCAAs, CoQ10, DHA & Nicotinamide Riboside - Supports Healthy Brain Structure & Cognition* - NSF Cert

3.9 (14)
$142.00$4.73/serving
THORNE - Immune Support Duo - Quercetin Phytosome & NAC for Balanced Immune and Respiratory WellnessImmune

THORNE - Immune Support Duo - Quercetin Phytosome & NAC for Balanced Immune and Respiratory Wellness

NSF Certified for Sport, NSF GMP

- Immune Support Duo

Immune Support Duo — Quercetin Phytosome & NAC for Balanced Immune and Respiratory Wellness - 30 Servings

5.0 (7)
$79.00$2.63/serving
THORNE RESEARCH - Trace Minerals (Zn/Mn/Cr/Se/Mo/V) - 90's [Health and Beauty]Beauty

THORNE RESEARCH - Trace Minerals (Zn/Mn/Cr/Se/Mo/V) - 90's [Health and Beauty]

NSF Certified for Sport, NSF GMP

RESEARCH

RESEARCH — Trace Minerals (Zn/Mn/Cr/Se/Mo/V) - 90's [Health and Beauty]

2.8 (5)
$24.00
THORNE - Perimenopause Complete - Supports Mood Balance & Restful Sleep - Relief from Hot Flashes, N CapsuleSleepCapsule

THORNE - Perimenopause Complete - Supports Mood Balance & Restful Sleep - Relief from Hot Flashes, N

NSF Certified for Sport

- Perimenopause Complete

Perimenopause Complete — Supports Mood Balance & Restful Sleep - Relief from Hot Flashes, Night Sweats & Vaginal Dryness* - Contains Herbal Ingredient

5.0 (1)
$52.00$0.87/serving

Frequently Asked Questions

Is Thorne third-party tested?

Yes. Thorne manufactures all products in their own NSF GMP-registered facilities. Their athletic line carries NSF Certified for Sport designation, and all products undergo rigorous testing for identity, purity, potency, and composition.

Why do doctors recommend Thorne?

Thorne partners with Mayo Clinic and other research institutions to develop evidence-based formulations. Their commitment to third-party testing, allergen-free manufacturing, and clinical dosing makes them a preferred brand among healthcare practitioners.

Does Thorne use proprietary blends?

No. Thorne discloses every ingredient and its exact dose on all product labels. They also avoid common allergens, unnecessary binders, and artificial preservatives.

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This content is for informational purposes only and does not constitute medical advice. Statements about dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary — consult your healthcare provider before starting any supplement. Full disclaimer