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.
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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VitaminsCapsuleTHORNE - Vitamin D-5,000 - Vitamin D3 Supplement - Supports Healthy Bones, Teeth & Muscles, Plus Car
- Vitamin D-5,000
Vitamin D-5,000 — Vitamin D3 Supplement - Supports Healthy Bones, Teeth & Muscles, Plus Cardiovascular & Immune Function* - NSF Certified for Sport -
THORNE - Vitamin D + K2 Liquid with a Metered Dispenser - Vitamins D3 & K2 to Support Healthy Bones
- Vitamin D + K2 Liquid with a Metered Dispenser
Vitamin D + K2 Liquid with a Metered Dispenser — Vitamins D3 & K2 to Support Healthy Bones & Muscles* - 1 Fl Oz (30 ml) - 600 Servings
VitaminsTHORNE - Basic Prenatal - Well-Researched Folate Multi for Pregnant & Nursing Women - Includes 18 Vi
- Basic Prenatal
Basic Prenatal — Well-Researched Folate Multi for Pregnant & Nursing Women - Includes 18 Vitamins & Minerals, Plus Choline - Third-Party Certified - G
VitaminsTHORNE - Basic B-Complex - Tissue-Ready Vitamin B Complex Supplement with Choline - Supports Cellula
- Basic B-Complex
Basic B-Complex — Tissue-Ready Vitamin B Complex Supplement with Choline - Supports Cellular Energy Production, Brain Health & Red Blood Cell Formatio
VitaminsTHORNE - Stress B-Complex - Vitamins B2, B6, B12 & Folate in Highly-Absorbable and Active Forms - Ex
- Stress B-Complex
Stress B-Complex — Vitamins B2, B6, B12 & Folate in Highly-Absorbable and Active Forms - Extra Vitamin B5 for Adrenal Support, Stress Management & Imm
VitaminsCapsuleTHORNE - Advanced Iron Complex - Complete Blood Support Formula* - Elemental Iron, Folate, B and C V
- Advanced Iron Complex
Advanced Iron Complex — Complete Blood Support Formula* - Elemental Iron, Folate, B and C Vitamins for Optimal Absorption - Chelated Iron Supplement -
VitaminsCapsuleTHORNE - B-Complex #12 - Vitamin B Complex with Choline Supplement - Supports Cellular Energy Produc
- B-Complex #12
B-Complex #12 — Vitamin B Complex with Choline Supplement - Supports Cellular Energy Production & a Healthy Nervous System* - Third-Party Certified -
VitaminsTHORNE - 5-MTHF - Methylfolate (Active B9 Folate) Supplement - Supports Cardiovascular Health, Fetal
1mg · - 5-MTHF
5-MTHF — Methylfolate (Active B9 Folate) Supplement - Supports Cardiovascular Health, Fetal Development, Nerve Health, Methylation & Homocysteine Leve
VitaminsTHORNE - Vitamin D3 Supplement - Supports Healthy Bones, Teeth, Muscles, Cardiovascular & Immune Fun
1,000 IU · - Vitamin D3 Supplement
Vitamin D3 Supplement — Supports Healthy Bones, Teeth, Muscles, Cardiovascular & Immune Function* - Gluten, Dairy & Soy-Free - 1,000 IU - 90 Servings
THORNE - Vitamin B12 - as Methylcobalamin - Supports Heart & Nerve Health, Blood Cell Function, Rest
- Vitamin B12
Vitamin B12 — as Methylcobalamin - Supports Heart & Nerve Health, Blood Cell Function, Restful Sleep & Methylation* - Third-Party Certified - Gluten,
VitaminsTHORNE - Vitamin C 500 mg - Blend of Vitamin C and Citrus Bioflavonoids from Oranges - Supports Immu
500 mg · - Vitamin C
Vitamin C 500 mg — Blend of Vitamin C and Citrus Bioflavonoids from Oranges - Supports Immune System, Cellular Energy Production & Collagen Production
VitaminsCapsuleTHORNE - Vitamin D-10,000 - Vitamin D3 Supplement - Supports Healthy Bones, Teeth & Muscles, Plus Ca
- Vitamin D-10,000
Vitamin D-10,000 — Vitamin D3 Supplement - Supports Healthy Bones, Teeth & Muscles, Plus Cardiovascular & Immune Function* - Third-Party Certified - G
VitaminsCapsuleTHORNE - Multi-Vitamin Elite - Daily Nutritional Supplement - Two Formulas Support Cellular Energy P
- Multi-Vitamin Elite
Multi-Vitamin Elite — Daily Nutritional Supplement - Two Formulas Support Cellular Energy Production, Restful Sleep & More* - Third-Party Certified -
VitaminsCapsuleTHORNE - Niacinamide - Non-Flushing Form of Vitamin B3 - Supports Skin Health & Provides Cellular Pr
- Niacinamide
Niacinamide — Non-Flushing Form of Vitamin B3 - Supports Skin Health & Provides Cellular Protection* - Niacin Supplement - Third-Party Certified - Glu
VitaminsCapsuleTHORNE - Women's Multi 50+ - Comprehensive Daily Multi with Vitamins A, B6, B12, C, D, E, K, Zinc &
- Women's Multi 50+
Women's Multi 50+ — Comprehensive Daily Multi with Vitamins A, B6, B12, C, D, E, K, Zinc & More - Support Heart, Brain, Bone & Immune Health* - Third-
VitaminsTHORNE - Methyl-Guard Plus - Active Folate (5-MTHF) with Vitamins B2, B6 & B12 - Supports Methylatio
- Methyl-Guard Plus
Methyl-Guard Plus — Active Folate (5-MTHF) with Vitamins B2, B6 & B12 - Supports Methylation & Healthy Level of Homocysteine* - Gluten, Dairy & Soy-Fr
VitaminsCapsuleTHORNE - Vitamin K - Vitamins K1 and K2 (as MK-4 and MK-7) Capsule Supplement - Supports Strong Bone
- Vitamin K
Vitamin K — Vitamins K1 and K2 (as MK-4 and MK-7) Capsule Supplement - Supports Strong Bones* - Clinically Studied Ingredients - Third-Party Certified
VitaminsLiquidTHORNE - Vitamin D Liquid - Vitamin D Supplement - Supports Healthy Bones and Muscles, Cardiovascula
- Vitamin D Liquid
Vitamin D Liquid — Vitamin D Supplement - Supports Healthy Bones and Muscles, Cardiovascular Health & Immune Function* - 1 Fl Oz (30 ml) - 600 Serving
VitaminsCapsuleTHORNE - Biotin - Vitamin B7 Supplement for Healthy Hair, Nails, Skin & Metabolism - Supports Nerve
- Biotin
Biotin — Vitamin B7 Supplement for Healthy Hair, Nails, Skin & Metabolism - Supports Nerve Health* - Third-Party Certified - Gluten, Dairy & Soy-Free
VitaminsTHORNE - B-Complex #6 - Vitamin B Complex with Active Forms of Essential B Vitamins & Extra B6-60 Se
- B-Complex #6
B-Complex #6 — Vitamin B Complex with Active Forms of Essential B Vitamins & Extra B6-60 Servings
VitaminsCapsuleTHORNE - Men's Multi 50+ - Comprehensive Daily Multi with Vitamins A, B6, B12, C, D, E, Zinc & More
- Men's Multi 50+
Men's Multi 50+ — Comprehensive Daily Multi with Vitamins A, B6, B12, C, D, E, Zinc & More - Support Heart, Brain, Prostate, Muscle & Immune Health* -
VitaminsCapsuleTHORNE - Thyroid Health Complex - Thyroid Cofactors for Thyroid Function Support* - Vitamins B12, C
- Thyroid Health Complex
Thyroid Health Complex — Thyroid Cofactors for Thyroid Function Support* - Vitamins B12, C & E, Ashwagandha, Iodine, Zinc, Selenium, Copper & L-Tyrosi
VitaminsTHORNE - 5-MTHF - Methylfolate (Active B9 Folate) Supplement - Supports Cardiovascular Health, Fetal
5mg · - 5-MTHF
5-MTHF — Methylfolate (Active B9 Folate) Supplement - Supports Cardiovascular Health, Fetal Development, Nerve Health, Methylation & Homocysteine Leve
THORNE - 5-HTP - Contains Vitamin B6 - Serotonin Support for Sleep & Stress Management* - 5-Hydroxyt
- 5-HTP
5-HTP — Contains Vitamin B6 - Serotonin Support for Sleep & Stress Management* - 5-Hydroxytryptophan Supplement - Third-Party Certified - Gluten, Dair
Frequently Asked Questions
Is Thorne third-party tested?
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?
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?
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


