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  • Egg free

  • Peanut free

  • Gluten free

  • NSF Certified

  • Vegan

  • Artificial sweetener free

  • Non-GMO

  • Wheat free

  • USP Verified

  • Artificial preservative free

Blend of unmethylated B12 forms to promote nerve and mitochondrial health.*

Hydroxycobalamin is a precursor form of vitamin B12 converted in the body to both methylcobalamin and adenosylcobalamin. It is similar to cyanocobalamin without the cyanide moiety. Adenosylcobalamin is an activated form similar to methylcobalamin. While methylcobalamin is found in the cytosol of cells and predominates in blood and other fluids, adenosylcobalamin is the major form of vitamin B12 stored in the mitochondria of cellular tissues. It is a key cofactor in carbohydrate metabolism for the enzyme methylmalonyl-CoA mutase used to produce succinyl-CoA. Optimal levels also support healthy synthesis of neuronal myelin.*

A unique blend of adenosylcobalamin and hydroxycobalamin offers unmethylated B12 to promote nerve and mitochondrial health.*

• Nerve and mitochondria support*
• Made with hypoallergenic, vegan ingredients


Suggested Use / Directions:

Take 1 capsule, 1–3 times daily, with meals.



Serving Size:
1 capsule

Amount Per Serving:

Vitamin B12 (as adenosylcobalamin and 50% hydroxycobalamin) ... 2,000 mcg



Other Ingredients:
hypoallergenic plant fiber, vegetarian capsule (cellulose, water)


If pregnant or lactating, consult your physician before taking this product.

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

Enhanced testing

Adenosyl/Hydroxy B12

Pure Encapsulations

$31.99

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