Vitamin B12 - 60 Servings

Thorne Vitamin B12 provides methylcobalamin, the biologically active form of B12 the body can use directly—unlike cyanocobalamin, which requires conversion by the liver. Each bottle offers 60 servings formulated to support nerve function, healthy homocysteine metabolism, blood cell formation, and normal circadian rhythms.

Many vitamin B12 supplements contain cyanocobalamin as the active ingredient, which the liver must first "detoxify" and modify to form methylcobalamin – an active form of vitamin B12 that is essential for processes involved in cardiac function, sleep, blood cell formation, and nerve function.* Thorne's Vitamin B12, as Methylcobalamin, provides vitamin B12 in its already biologically active and tissue-ready form.* Clinical evidence indicates that the body uses methylcobalamin more efficiently than cyanocobalamin.* Methylcoblamin helps maintain normal circadian rhythms to promote normal sleep and supports healthy methylation processes in the body.*

Methylcobalamin is essential for the body to recycle homocysteine and to form the internal methyl donors involved in cardiovascular function, sleep, blood cell formation, and nerve function.* Most vitamin B12 supplements contain cyanocobalamin; however, the liver must first "detoxify" the cyanide molecule in cyanocobalamin and then attach a methyl group to form methylcobalamin.

Although research shows the quantity of cobalamin detected following an oral dose of methylcobalamin is similar to the amount following administration of cyanocobalamin, significantly more cobalamin accumulates in liver tissue following administration of methylcobalamin. And the urinary excretion of methylcobalamin is about one-third that of a similar dose of cyanocobalamin, indicating substantially greater tissue retention of the former.*

Suggested Use:

Take 1 capsule one to three times daily or as recommended by your health professional.

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 professional before using this product.

INTERACTIONS
There are no known adverse interactions or contraindications at publication date.

Why Choose Thorne Methylcobalamin B12

• Bioactive from the start: Delivered as methylcobalamin rather than cyanocobalamin, so the body receives B12 in its tissue-ready form without requiring liver conversion.
• Sleep and circadian support: Methylcobalamin plays a role in maintaining normal circadian rhythms, making it a thoughtful addition to an evening wellness routine.
• Cardiovascular and nerve wellness: Supports healthy homocysteine recycling and the methylation processes linked to cardiovascular function and nerve health.
• Trusted formulation: Crafted by Thorne, a brand recognized for rigorous quality standards and clinically informed supplement development.

Frequently Asked Questions

What makes methylcobalamin different from cyanocobalamin in a B12 supplement?

Methylcobalamin is already in the biologically active form the body uses, while cyanocobalamin requires the liver to detoxify and convert it first. Clinical evidence suggests the body utilizes methylcobalamin more efficiently.

Who might consider adding Thorne Vitamin B12 to their routine?

Those looking to support nerve function, healthy sleep patterns, blood cell formation, and cardiovascular wellness as part of a balanced supplement regimen may find methylcobalamin B12 a relevant addition.

How many servings are included in one bottle of Thorne Vitamin B12?

Each bottle contains 60 servings, providing a consistent two-month supply when used as directed on the product label.