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Zenwise Health Vitamin B-12 Review – 8 Facts You Need to Know

By Sasha de Beausset Aparicio, MSc

Reviewed by Rebecca Williams, MD, MA, MB, BChir

Last Updated:

Evidence Based | Summary | Nutrition Facts | Claims | Cautions | Price | How To Take | Verdict

Vitamin B-12 is a dietary supplement that advertises the benefits of the B-12 nutrient, a water soluble vitamin that belongs to the B12-Complex of eight such nutrients. The supplement is beneficial for both men and women and is crafted to offer 1000 mcg of timed-release B12, which helps the body convert energy from various foods, supports the body’s metabolic function, and supports the digestive and nervous system health.

Zenwise Labs is a company that enjoys a positive reputation among consumers, with numerous formulations available for a broad spectrum of health issues. The company operates GMP compliant facilities on U.S. territory.

The supplement reviewed features all natural ingredients and is free of gluten, allergens, and artificial ingredients (colorings, flavorings, or preservatives). The supplement should be used by adults over the age of 18 exclusively. Pregnant and nursing women should take extra precautions before use and preferably talk to a healthcare provider before starting administration.


1) What is Vitamin B-12?

Relying on its core ingredient Vitamin B-12 in its bio-available form Methylcobalamin, Vitamin B-12 seeks to cover any imbalance that may exist in the human organism in order to avoid specific health issues associated to improper levels. This too, like all the other 7 nutrients belonging to the B-complex, is water soluble, meaning excess is eliminated from the body primarily through urine and supply needs to be fulfilled constantly.

Research on this nutrient has shown that the body uses it to create red blood cells and nervous cells, that it participates in DNA synthesis and that it helps prevent megaloblastic anemia, which manifests through physical tiredness and weakness. Methylcobalamine is particularly important to the health of the nervous system, and research has been working to find links with such conditions like peripheral neuropathy, chronic fatigue syndrome, Alzheimer’s disease, Parkinson’s disease, muscular dystrophy and neurological aging. Also, the nutrient is essential for vision health, particularly to visual accommodation.

The formula is covered by a 100% lifetime money back guarantee, no matter the reason for dissatisfaction, which is a great advantage over similar formulation. It shows that the company trusts the product’s quality and is ready to address complaints in a way that is fair to the customer.

Nutrition Facts

2) Vitamin B-12 Nutrition Facts

Vitamin B-12 contains the following ingredients: 1000 mcg Vitamin B-12 (Methylcobalamin), Dicalcium Phosphate, Microcrystalline Cellulose, Stearic Acid, Croscarmellose Sodium, Magnesium Stearate, Silicon Dioxide, HPMC (Hydroxypropyl Methylcellulose), PEG 400, and Methacrylic Acid Copolym.

3) What Does Vitamin B-12 Do?

Vitamin B-12 is claimed to be a timed-release B-12 formula designed to improve the body’s ability to convert foods into cellular energy, support digestive and nervous system health and metabolic function overall. The supplement may prove effective for people who either have been diagnosed with a B-12 deficiency or who desire to improve metabolic processes, and all other aspects influenced by B-12.

The supplement features B-12 as Methylcobalamin, the form which is better absorbed and retained in higher amounts at tissue level. Methylcobalamin is used primarily by the liver, brain and nervous system, and represents the specific form of Vitamin B12 needed for nervous system health.

Signs of a potential deficiency of this nutrient in the nervous system might include loss of feeling sensation, burning sensations, numbness, tingling, muscle cramps, nerve pain and slowness of reflexes. While most people have the capacity to synthesize all the B-12 needed from dietary sources, there are some groups that need to supplement intakes. These categories include people who suffer from pernicious anemia, or people who recently had gastrointestinal surgery.

Adults 18 and older should take 1 tablet daily with a meal, or as instructed by a healthcare professional. Vitamin B12 is likely safe for most people when taken by mouth, applied to the skin, taken through the nose, or administered as a shot.


4) What Vitamin B-12 Does?

  • A 100% Lifetime Money-Back Guarantee is available for all company products
  • The formula is allergen and gluten free
  • Great price, particularly if you get the 70% discount that Amazon currently offers
  • Numerous consumer testimonials, most of which positive (Amazon.com)


5) What You Need to Know Before Taking Vitamin B-12

  • There are not many details available on the ownership of the manufacturing company
  • Certain categories of patients may not use the formula due to preexisting health issues


6) Vitamin B-12 Price

You can get Vitamin B-12 for almost 70% off from Amazon.com, as well as from the official website. Each bottle features 160 capsules, meaning each bottle should last approximately 5 months of treatment. This is probably a limited time offer and an excellent deal, but the expiration date is not disclosed. The regular price for one bottle is roughly $50, which is still a competitive price compared to similar formulations available online. The manufacturing company is very confident in their formulation hence they offer a 100% no-hassle lifetime money back guarantee. If for any reason one does not get the wanted results, the purchase price value will be fully reimbursed.

How To Take

7) How to Take Vitamin B-12

Each bottle of Vitamin B-12 contains 160 capsules, which, at a one capsule per day dose should last approximately 5 months.


8) Our Verdict on Vitamin B-12

This supplement offers a natural, gluten free solution to achieve optimal Vitamin B-12 levels, in case a deficiency exists or one desire to prevent having a deficiency. The lifetime money back guarantee is definitely one of the major benefits for this supplement, which shows a lot of confidence from the manufacturer’s part. Also, the large number of consumer testimonials and the overwhelming portion of positive feedback received from users is one other argument in favor of this supplement. All these plus its great price (even without the 70% discount currently available on Amazon and on the official website) make Vitamin B-12 an excellent choice.

Nonetheless, we advise that you seek the advice of a healthcare provider before starting use, since this article is not intended to cure or diagnose any disease, but merely to offer an objective review of the product.

3/5 - (1 vote)
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