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What's Inside

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Essentially Pure...


Discover BioActive B12 Full-Spectrum

  • 3-IN-1-SUPPORT: BioActive B12 "Full Spectrum" - is a high quality VEGAN vitamin B12 complex utilizing three bioavailable forms. This advanced formula includes ingredient forms that need no conversion in the liver in order to be available for use by your cells. As a sublingual supplement, BioActive B12 provides maximum absorption through the mucous membranes in the mouth. It has a natural and mild taste that is easy on the palate. China Free - Alcohol Free - Non GMO - Sugar Free - Unflavored
  • METHYLCOBALAMIN -- Biologically Active Form: Utilizing patented *MecobalActive* with exceptional purity; no harmful solvents are used in its production as you see with many other methylcobalamin supplements on the market.
  • ADENOSYLCOBALAMIN -- Mitochondrial Form: Considered an active "coenzyme" form of B12 and is utilized directly in B12-dependent enzyme reactions in the body.*
  • HYDROXOCOBALAMIN -- Protector Form: Readily converts to methylcobalamin and has a unique role in supporting detoxification processes.*

From our blood cells to our nerves and down to our DNA, Vitamin B12 is a critical vitamin for the health of our bodies. We've carefully formulated this highly bioavailable Vegan BioActive B12 to include ALL 3 bio-available forms of B12. Bioactive simply means that the B12 has already been converted into a form that your body can utilize immediately.  With these specialized bioactive forms, the B12 does not need to be converted in order to be available for use by your cells (conversion can be especially problematic for people with MTR, MTRR, COMT as well as other gene defects).

Did you know that both vegan and non-vegan individuals suffer from B12 deficiency? If you’re omnivorous, you may get some B12 from meats, dairy and eggs; however vegetarians and vegans have a more difficult time. If you’re a strict vegan, studies have confirmed that you’re likely to be deficient in B12, unless you’re supplementing regularly. While rates of B12 deficiency are much higher in vegetarians and vegans than in omnivores, that doesn’t mean it’s rare in omnivores. Approximately 1 in 20 omnivores are B12 deficient. B12 deficiency is also more common in people with gut problems since that may decrease intestinal absorption (including taking OTC drugs which block stomach acid). Older adults are also at risk as stomach acid levels decline as we age, which makes it difficult to cleave the vitamin from its protein bound form in food.

The consequences of vitamin B12 deficiency are extremely serious and sometimes irreversible  (nerve damage for example). B12 is water soluble - our bodies are unable to store it for very long. Ultimately, it's very important that you are getting enough B12 in your diet - and the easiest, most bio-available method is to take this supplement consistently.

Methylcobalamin - Assists methylation, brain & nerve health, circulatory & immune systems, reducing homocysteine.*

Adenosylcobalamin - Aids in muscle recovery, mitochondrial support, repairing the myelin sheath.*

Hydroxycobalamin is a precursor form of vitamin B12 converted in the body to both methylcobalamin and adenosylcobalamin. This form of B12 helps in pain sensitivity, chronic fatigue, brain fog and detoxification.*

MONEY BACK GUARANTEE - 100% RISK FREE - If our BioActive B12 Full Spectrum isn't the best supplement you've ever tried, simply return the bottle within 30 days of purchase (even if empty). You'll receive 100% refund of your purchase price. It's that simple!

Manufactured in the USA in an NSF and GMP-certified facility, for guaranteed quality and potency. This supplement is third party tested to ensure the highest quality, potency and purity of each batch.

Customer Reviews

Based on 12 reviews

If u are seriously considering raising your B/12 levels, then you have found the right product!!
My Dr runs labs on me, every 3 months- due to some health issues related to nutritional deficiencies.
Before using this product my b12 level was 529.
When I went back, my levels were a little over 1400.
I will attest to this product working~
I'm a very cautious person when it comes to trying new products, & I am definitely not one for spending my money on stuff that don't deliver, but as I've said, this is the real deal!!
If you have a problem in ANY area & have additional questions, I know that you will find these professionals readily available & willing to assist you, as I did.
I also had an issue with my D3,
trying to get it up from 15 into the normal range, which several Drs. had tried unsuccessfully for years to raise my levels. Therefore, when the D3/K2 wasn't doing the trick, I just chalked it up to the product not delivering and almost gave up on even ordering it ever again.
But, I thought... I am going to call PureTheraPro Rx, and see if they have any answers for me
As to why their product isnt raising my levels & im so glad that I did! I was so happy to learn that, they did indeed have a solution for me.
And when I added the missing "Boron" component, it went up & now I am happy to say that I am in the normal range (maybe a bit higher, bc I refuse to stop taking My Vitamin D3, especially with us going into the winter months.
The team at PureTheraproRX, have
been extremely kind & helpful to me in so many ways.
Thank You all so very much & the Tips you give regarding products & how they work is very much appreciated.
[Sorry Everyone- about my review being so lengthy].

Best B12!

I was using another brand of B12 and it seems like it was working for a while. Then not so much. I stumbled across this one and read how it contains 3 very essential forms that we need. So I decided to give it a try. Well it’s a world of difference. I feel a lot calmer, less anxiety and a clearer head. It’s amazing that you only need 4 drops under the tongue. I like the purity of the products and the fact that they’re vegan!

Great supplement!

I love these B12 sublingual drops! So many sublingual drops have cinnamon in them & I’m allergic to cinnamon.
Have to take sublingual. These are great, no taste, no cinnamon. Also feel wonderful, can tell a difference if I forget to take them for a few days. B12 levels now in normal range, yay!

So pure and no additives

So excited when I found this product! Exactly what I was looking for and with the right amounts of B12. It tastes great and had no additional additives! I love all of their products... affordable and pure. That’s what I look for in a supplement so I’m so happy to have found this brand!!

Best B-12

I was previously taking another brand of sublingual B vitamin. While I did feel better when taking it, I always wondered if it was the correct formula for me. I did a bunch of research on B-12 and then searched for a product that matched what I felt I needed. This was the only product out there with exactly what I wanted. This B-12 is great and I notice a big difference if I miss a day. It helps with my overall energy level and frame of mind. It's easy to take and tastes good. Thank you for such a clean B-12 formula!

Frequently Asked Questions

Vitamin B12 as MecobalActive® Methylcobalamin, Adenosylcobalmin & Hydroxocobalamin

Other Ingredients
Triple-Distilled Water, USDA Certified Organic Kosher Vegetable Glycerin, Natural Potassium Sorbate Derived from Mountain Ash Tree Berries, Natural Citric Acid Derived from Citrus Fruits

Fillers, wheat, gluten, yeast, soy protein, animal or dairy products, fish, shellfish, peanuts, tree nuts, egg, artificial colors, artificial sweeteners, or artificial preservatives.

All Pure TheraPro Rx Formulas Meet or Exceed cGMP Quality Standards. This product is manufactured in the USA in a FDA inspected, NSF and GMP-certified facility for guaranteed quality and potency.

BioActive B12 Supports Nervous System and Brain Health

BioActive B12 is a high quality vegan B12 complex utilizing three bioavailable forms of this key vitamin. These forms require no conversion in the liver in order to be used by your cells. As a pure and potent supplement, BioActive B12 provides maximum absorption with a mild taste that is easy on the palate.  

Clinically Effective Formula

Vitamin B12 is a critical vitamin for the health of our bodies. We’ve carefully formulated this highly bioavailable Vegan BioActive B12 to include all three forms of B12, including methylcobalamin, adenosylcobalamin, and hydroxocobalamin. BioActive means that B12 has already been converted into a form that your body can utilize immediately. With these specialized bioactie forms, the B12 does not need to be converted in order to be available for use by your cells. 

Purity Is Our Priority

Pure TheraPro Rx® provides supplement solutions to ensure your body gets the micronutrients necessary to support total-body health and vitality. Pure TheraPro Rx® supplements do not contain any fillers such as rice flour, corn starch, or wood pulp fibers like cellulose. Our manufacturing facility adheres to strict NSF/cGMP (Current Good Manufacturing Practices) guidelines. We chose to sweeten our products with a patented form of monk fruit, never using artificial sweeteners or stevia. In addition to avoiding unwanted digestive issues and allergic responses common with other sweeteners, monk fruit provides additional health benefits.