Vitamin B12
Scored by the Formulate Research Team · Last reviewed May 2026
Overview: Thorne Vitamin B12
Active form of vitamin B12 that supports heart and nerve health, normal circadian rhythms, and healthy methylation* Vitamin B12 as methylcobalamin contains an active, tissue-ready form of vitamin B12 to improve bioavailability. This form is used to support healthy methylation throughout the body.
Score Breakdown
Formulate scores every product across six weighted dimensions. Each dimension is graded independently — hover or tap to see what drove each component.
Ingredients per Serving
| Ingredient | Amount |
|---|---|
| Vitamin B12Methylcobalamin | 3 mg |
Certifications & Testing
Other Ingredients
Hypromellose (derived from cellulose) capsule, Leucine, Microcrystalline Cellulose, Silicon Dioxide
Recommended Use
Take 1 capsule one to three times daily or as recommended by your health-care practitioner.
Warnings
ALLERGY WARNING: This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients. PREGNANCY: If pregnant, consult your health-care practitioner before using this product. INTERACTIONS: There are no known adverse interactions or contraindications at publication date.
Frequently Asked Questions
What is Thorne Vitamin B12's Formulate score?
Thorne Vitamin B12 scores 98 out of 100 (grade A) on Formulate's ingredient-level rubric, which weighs evidence quality, dose accuracy, bioavailability, transparency, safety, and manufacturing practices.
Is Thorne Vitamin B12 worth it?
Thorne Vitamin B12 scores 98/100 (grade A). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.
What's in Thorne Vitamin B12?
Each serving contains Vitamin B12 (3 mg). Serving size: 1 Capsule. 60 servings per container.
How do I take vitamin b12?
Take 1 capsule one to three times daily or as recommended by your health-care practitioner.
Who makes Vitamin B12?
Vitamin B12 is made by Thorne. See Formulate's full grade and product lineup for Thorne on its brand page.
Is Thorne Vitamin B12 third-party tested?
Thorne lists the following certifications and testing for this product: Gluten Free, Soy Free, Dairy Free, Natural Flavors, Natural Colors, Third-Party Contents Certified, Thorne Verified, GMP Certified, Manufactured in the USA.
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Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.