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Hydroxy B12 - 60 lozenges - AOR (08325)
Hydroxy B12 - 60 lozenges - AOR (08325) Quantity in Basket: None

Price: $23.97


Hydroxy B12 from AOR™ Advanced Orthomolecular Research
Coenzyme precurser*
Dosage: 1 Lozenge
Size: 60 Lozenges
Category: AOR
Product Number: 08325
Product Code: AOR-HYD

Hydroxy B12 (Hydroxycobalamin): A Unique Form of Vitamin B12

Hydroxycobalamin is a unique form of vitamin B12, which is more readily converted into the coenzyme forms than conventional cyanocobalamin. This allows Hydroxycobalamin to serve as an effective broad-spectrum form of vitamin B12.

AOR™ guarantees that no ingredients not listed on the label have been added to the product. Contains no wheat, gluten, corn, nuts, dairy, soy, eggs, fish or shellfish.

Suggested Use:
Take one lozenge under the tongue daily with food, or as directed by a qualified health care practitioner.

Main Applications:
• Pernicious anemia
• Superior B12 supplement
• Cyanide toxicity

Biological fermentation.

Pregnancy / Nursing


Other Label Information: Keep out of the reach of children.

Supplement Facts:
Serving Size: 1 lozenge

Servings per Container: 60
  Amt. per Capsule % RDI
Hydroxycobalamin 1000 mcg 16,666%
% RDI Age 12 and above * Need for human nutrition not established
Other Ingredients: sorbital, magnesium stearate, and silicon dioxide.

is a unique form of vitamin B12, which is more readily converted into the coenzyme forms than conventional cyanocobalamin. A coenzyme is a factor needed for the effective functioning of one of the body's vital enzymes. Many vitamins, including B12, are not biologically active in the form in which they are normally found in food, but are instead used by the body as part of a coenzyme. In other words, in these cases, the body has to convert a vitamin into its coenzyme form in order for the vitamin to exert its biological function.

Or, in the case of vitamin B12: not function, but functions. The body uses vitamin B12 in the form of two different coenzymes, each of which plays a different role in the body. Adenosylcobalamin [also known as cobamamide or dibencozide], was discovered earlier, and is the better-known of these coenzymes. Methylcobalamin is the other coenzyme form of B12. Methylcobalamin prevents the creeping numbness, dementia, and spongy degeneration of the nerve cells (neurons) seen in B12 deficiency. Adenosylcobalamin helps the body to process some amino acids, and to form substances used in the body's energy cycle. One coenzyme can't substitute for the other, any more than you can use your house keys to start your car.You might think that this is the kind of obscure little factoid that gets put into biology textbooks or turns up on Final Jeopardy, but which has no real-world importance. "My diet and supplement program includes plenty of B12," you might think, "so my body will make all the B12 coenzymes I could ever want or need."

Like the old song says, It ain't necessarily so. While a good diet and supplement program usually guarantees the body a generous supply of adenosylcobalamin (unless you have a deadly genetic defect), the same cannot be said of Methylcobalamin. While adenosylcobalamin is readily stored up in the liver (and, to a lesser extent, the kidneys and other tissues), methylcobalamin's job requires that it be free to circulate in body fluids like cytosol (the liquid medium of the cell), plasma, and the fluid that bathes the brain and spinal cord (cerebrospinal fluid). Because of this, Methylcobalamin doesn't hang around in the body for very long.

Thus, while a person getting enough of the basic vitamin (cobalamin) will always have plenty of adenosylcobalamin, the nervous system has no special store of protective Methylcobalamin on which to rely. In fact, the body's Methylcobalamin "fuel tanks" can easily be brought below optimal levels, and the supply is quickly depleted if it is not constantly replenished.

When you take a regular B12 (cyanocobalamin) supplement, the body must first convert its B12 into Hydroxycobalamin order to form the B12 coenzymes. This involves the removal and detoxification of the cyanide molecule, followed by biochemical reduction to a less oxidized (+1 valence) state, and then the enzymatic conversion of the reduced cobalamin into one of two metabolically active coenzyme forms. By taking a preformed Hydroxycobalamin supplement, you can skip over this first biochemical stumbling block, allowing for unhampered formation of adenosylcobalamin and Methylcobalamin.

Methylcobalamin or Hydroxycobalamin?
Because the body can interconvert the two B12 coenzymes, and because the body stores adenosylcobalamin but not Methylcobalamin, an adequate supply of Methylcobalamin usually ensures that you'll have plenty of adenosylcobalamin, too - but not vice-versa. Because of this fact, and because of the powerful neuroprotective effects of Methylcobalamin, a fully-formed Methylcobalamin supplement is the best choice for most people.

One key exception is persons with known or suspected cyanide toxicity, where Hydroxycobalamin has an unique role to play. Hydroxycobalamin helps the body to rid itself of cyanide, both by reacting with the toxin to form cyanocobalamin (which can then be excreted) and by enhancing the detoxification of cyanide through its conversion into the less toxic thiocyanate. In isolated human cells, Hydroxycobalamin penetrates cyanide-laden cells and detoxifies the toxin directly. Hydroxycobalamin has a long history of intravenous use for acute, life-threatening cyanide toxicity (such as during industrial disasters) and is approved for this use in many European countries. At lower doses, oral Hydroxycobalamin increases the urinary excretion of thiocyanate in laboratory animals fed cyanide-containing diets. Sublingual Hydroxycobalamin is an ideal choice for a B12 supplement in persons concerned with chronic, low-level cyanide toxicity.


van Asselt DZ, de Groot LC, van Staveren WA, Blom HJ, Wevers RA, Biemond I, Hoefnagels WH. Role of cobalamin intake and atrophic gastritis in mild cobalamin deficiency in older Dutch subjects. Am J Clin Nutr. 1998 Aug; 68(2): 328-34.

Forsyth JC, Mueller PD, Becker CE, Osterloh J, Benowitz NL, Rumack BH, Hall AH. Hydroxocobalamin as a cyanide antidote: safety, efficacy and pharmacokinetics in heavily smoking normal volunteers. J Toxicol Clin Toxicol. 1993; 31(2): 277-94.

Sauer SW, Keim ME. Hydroxocobalamin: improved public health readiness for cyanide disasters. Ann Emerg Med. 2001 Jun; 37(6): 635-41.

Ellis FR, Nasser S. A pilot study of vitamin B12 in the treatment of tiredness. Br J Nutr. 1973 Sep; 30(2): 277-83.

Smith AD, Duckett S. Cyanide, vitamin B-12, experimental demyelination and tobacco amblyopia. Br J Exp Pathol. 1965 Dec; 46(6): 615-22.

Mushett C, Kelley K, Boxer G, Rickards J. Antidotal Efficacy of Vitamin B12a (Hydroxo-Cobalamin) in Experimental Cyanide Poisoning. Proc Soc Exp Biol Med. 1952 Oct; 81(1): 234-7.

The information and product descriptions appearing on this website are for information purposes only, and are not intended to provide medical advice to individuals. Consult with your physician if you have any health concerns, and before initiating any new diet, exercise, supplement, or other lifestyle changes. Any reproduction in whole or part and in print or electronic form without express permission is strictly forbidden. Permission to reproduce selected material may be granted by contacting AOR Inc.

Copyright © 2012, Advanced Orthomolecular Research

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.