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  • Gluten free

  • Dairy free

  • Soy free

  • NSF Certified for Sport

  • Grain free

  • Artificial Color / Colour Free

  • Artificial Flavor / Flavour Free

Vitamin B12 is essential for numerous processes in the body. While B12 is often found in different forms in nutritional supplements, clinical evidence indicates that the body uses the methylcobalamin form of B12 more efficiently than other forms, such as cyanocobalamin. Thorne's Vitamin B12 as methylcobalamin provides vitamin B12 in its active, tissue-ready form.

Benefits of Thorne Vitamin B12

  • Supports healthy nerve function and feeling*
  • Promotes the body’s methylation pathways*
  • Balances circadian rhythms to enhance restful sleep*
  • Supports healthy homocysteine levels*
  • Promotes cardiovascular health*
  • Benefits cognitive function*

Who can benefit from Thorne Vitamin B12

  • Vegans or vegetarians whose diets are low in B12
  • A person with low stomach acid
  • The elderly who may eat fewer B12-rich foods and might not absorb it as well
  • Anyone with anemia because B12 is necessary of red blood cell formation
  • Individuals on certain medications, including metformin, proton pump inhibitors, and seizure medications

Tested for quality you can trust

This product has been third-party tested and certified to verify what's in the package matches what's on the label and to confirm it contains no unsafe levels of contaminants, such as heavy metals, pesticides, and microorganisms.


Suggested Use / Directions:
Take 1 capsule one to three times daily or as recommended by your health-care practitioner.

Serving Size:
1 Capsule

Amount Per Serving:
Serving Size: 1 Capsule 1 Capsule Contains: DV% Vitamin B12 (as Methylcobalamin)† ... 1,000 mcg 41,667%

Other Ingredients:
Other Ingredients: Microcrystalline Cellulose, Hypromellose (derived from cellulose) capsule, Leucine, Silicon Dioxide.

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.
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.
Why is this a top pick for Vitamin B12 (Cobalamin)?

This product has been chosen as a Top Pick by Fullscript based on factors like quality, ingredients, value, and availability. Your provider’s recommendation always comes first.

This product was selected based on the factors below: An active, tissue-ready form of vitamin B12 that bypasses cyanocobalamin conversion to support methylation, cardiovascular health, nerve function, and healthy sleep cycles. Vegetarian, gluten-free, dairy-free, soy-free; manufactured under cGMP standards and third-party tested for identity, potency, and contaminants*.

Learn more about our process

About enhanced testing

Every product on Fullscript meets our high quality standards – but we don’t stop there. Enhanced Testing means select products are pulled directly from Fullscript’s shelves and tested by independent labs, so what’s on the label matches what’s in the product.

Learn more about the testing methods

Top pick

Enhanced testing

Vitamin B12

Thorne

$34.99

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