Isotonix® Activated B Complex

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Supercharge Your Energy Rapid Absorption for Maximum Results Supports Your Metabolism Helps Manage Stress Promotes Mental Clarity

by: Isotonix®

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(131)
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  • The Way to Supercharge Your Energy
    Always feeling drained? Get revitalize with the power of Isotonix® Activated B Complex. It's easy to take, and quick to absorb. 

    Formulated to deliver the best in eight essential B vitamins with methylated B6, B12 and folate, this supplement provides your essentials for energy production, supporting your metabolism and mental clarity while helping manage stress. 

    Your body often burns right through B vitamins, so rapidly replenish them and recharge with Isotonix Activated B Complex! 

  • Active ingredients: Thiamin HCl (as thiamin HCl), Riboflavin (as riboflavin-5-phosphate), Niacin (as niacinamide), Vitamin B6 (as pyridoxal-5-phosphate), Folate [as (6S)-5-methyltetrahydrofolate calcium], Vitamin B12 (as methylcobalamin), Biotin, Pantothenic Acid (as D-calcium pantothenate), Potassium (as potassium bicarbonate).

    Other ingredients: Fructose, glucose, citric acid, maltodextrin, silicon dioxide, apple fiber, calcium sulfate, apple pectin, lemon flavor, lime flavor, stearic acid.

Beyond Energy

Crafted for superior efficiency and optimal nutrient delivery.

All 8

Delivers 8 essential B vitamins. Each playing a critical role in supporting brain health, red energy and nervous system function

10x

P5P (B6) is 10 times more bioavailable than standard pyridoxine hydrochloride (the common form of B6)

B12

Delivers methylcobalamin, the neurologically active form of vitamin B12, to help support red blood cell formation, cognitive function and methylation pathways essential for energy and nervous system health

image of food containing vitamin B

Folate* (Vitamin B9) (as (6S)-5-methyltetrahydrofolic calcium)

It supplies folate in its biologically active form to help support methylation, neurotransmitter synthesis, homocysteine metabolism and healthy cell division — foundational for cardiovascular function, cognitive health and fetal development.

Product Classifications

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Good Manufacturing Practices

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Isotonic

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Gluten-Free

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No Detectable GMO

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Vegan

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Dairy Free

image of foods rich in B vitamins

Vitamin B Complex: The Powerhouse of Energy

B-complex vitamins are foundational nutrients that power nearly every system in the body.

From cellular health to cognitive clarity, B vitamins play essential roles in maintaining overall vitality. When delivered in their bioactive forms, B-complex nutrients are considered even more effective — helping the body absorb and utilize them with ease. Whether you're seeking balanced energy, mental focus or support for a busy lifestyle, a well-formulated B-complex vitamin can be a game-changing addition to daily wellness.

Key Ingredients & Their Benefits

Image of molecular structure of Vitamin B3
Niacinamide (Vitamin B3)*

Supports proper functioning of the digestive system, skin and nerves

image of vitamin B12
Vitamin B12*

Increases energy and fuels optimal energy production

Promotes a healthy nervous system, bone marrow and intestinal tract

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Folate (Vitamin B9)*

Promotes cardiovascular health

Promotes healthy levels of homocysteine

image of leafy greens
Vitamin B6 (P5P)*

Promotes normal cognitive performance

Maintains healthy levels of serotonin, thereby helping manage stress and support mood

Isotonix Activated B Complex — The Vitamin B Advantage

Don't let a lack of B vitamins in your diet slow you down. Boost your B vitamins with our active forms of vitamins B6 and B12 and folate for increased energy and support of healthy levels of serotonin for healthy stress management. Don't just live, thrive with Isotonix®!

Directions for Use

image of person pouring Isotonix Activated B Complex into a glass

Pour one small capful (3.3 g) of Isotonix® Activated B-Complex powder into your favorite cup.

image of person mixing up Isotonix Activated B in a glass

Add 2 fl oz of water per capful and stir until fully dissolved.

image of person holding a glass of Isotonix Activated B

Drink and enjoy! If mixed with other Isotonix products, add 2 oz of water for each capful.

:05 minutes

Isotonix Liquid Vitamins

  • Formulated to survive digestion.
  • Delivers concentrated nutrients to the site of absorption.
  • Contains no fillers or binders.
  • No artificial color or flavors. 

:40 minutes

Standard Vitamin Tablet

  • Contains lab-created coatings and lubricants.
  • Often contains artificial colors, nutrients and flavors.
  • Limited absorption of nutrient utilization. 

Frequently Asked Questions

  • Activated refers to the active forms of vitamins B6 and B12 and folic acid. Using forms other than these activated forms requires that the vitamins be enzymatically activated prior to utilization by the body. Not only does this take time and energy within the body, but there are circumstances when this reaction is either slowed or inhibited.

  • Vitamin B12 comes from bacteria. B12 in our diet can come from eggs or meats, or by taking a supplement. Vegetarians are recommended to take a B vitamin dietary supplement due to their lack of meat intake.

  • B vitamins are important and necessary for numerous metabolic processes within the body. As people age, the ability to absorb vitamins decreases and reduced levels of these vitamins have been associated with impaired cognitive performance, including vitamin B12. B12 plays a critical role in promoting normal energy production and nervous system function.

  • Vitamin B12 has not demonstrated any form of toxicity. As always, we only recommend the product to be taken as directed in the instructions.

  • Keep Isotonix stored in a cool, dry place. If Isotonix products are stored in the kitchen, keep them away from the stove, sink, heat-generating appliances or window ledges. If you live in a very humid area, you may store Isotonix products in the refrigerator — but not in the area for fruits and vegetables.

Research Scope

view full Reference List

20-25%

of women of reproductive age in the U.S.A. and Canada have folate levels below the optimal range.

86%

of vegetarians have low or deficient levels of vitamin B12 without supplementation.

20%

of adults that may have a subclinical deficiency in one or more B vitamins due to poor dietary intake.

Nearly 40%

of adults over 50 have decreased ability to absorb B12 from food due to lower stomach acid levels.

*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.

Reviews

Customer Reviews
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Displaying reviews 1 - 5 of 131

by BonnieP

  • Shop Consultant
Isotonix Vitamin B

Within 15 minutes of taking my Vitamin B, especially in the later afternoon, my energy level definitely steps up. I have been using this supplement for over 25 years and take 2-3 caps daily. Love our Isotonix!

by ToddK

  • Shop Consultant
Great alternative to afternoon coffee!

I love having this on hand when I'm at work, in the small bottle. I need a little boost, instead of coffee which may effect my sleeping that night, a quick shot of the B complex works for me in minutes. Unlike caffeine, I just feel awake, alert. No longer sleepy. And I can drink it later in the day and not worry about not being able to get to sleep, like with coffee or energy drinks. Healthy eneregy!

by RoxanneR

  • Shop Consultant
I love Activated B complex on a daily basis!!!!

I love B complex because it promotes normal cognitive performance and I believe lots of people are looking for a way to help manage stress and support mood! The best!

Response from Customer Service:

Thank you so much for your fantastic review of Isotonix® Activated B Complex! We're thrilled to hear you appreciate its support for cognitive performance, stress management, and mood. Your feedback means a lot to us. Thank you for being a valued customer!

by Anonymous

10/10

我先生服用了两年多等渗B族维生素后，改善了身体机能和精神状态，他非常喜欢👍会持续服用

Response from Customer Service:

非常感谢您的精彩评价！我们很高兴得知您的丈夫喜欢 Isotonix® 活性 B 族维生素，并从中受益匪浅。您的反馈和持续支持对我们意义重大——感谢您成为我们社区的重要成员！


Thank you so much for your fantastic review! We're delighted to hear that your husband has enjoyed Isotonix® Activated B Complex and that he has experienced such positive benefits with it. Your feedback and continued support mean a lot to us—thank you for being a valued part of our community!

by CheleB

  • Shop Consultant
Got Stress? Find relief

Activated Isotonix Bcomplex was the first supplement I tried 26 years ago. Working long hours and being present for our 2 young children, it was important I maintained a patient mood, had energy, and could focus. Within 10 minutes of drinking my Isotonix after work (before kiddos) it supported relaxation and relief so I could be the mom I wanted to be for my children.

Response from Customer Service:

Thank you so much for sharing your wonderful experience and for being a long-time supporter of Isotonix® Activated B Complex! We’re thrilled to hear the difference it’s made in your daily routine and how it’s supported you in being present for your family. Your feedback means a lot to us—thank you for being a valued member of our community!

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