Power Up Your Health
30 trillion
Vitamins and minerals support over 30 trillion cells in the human body, fueling processes of energy production to promote healthy growth and repair of tissue.
100%
Isotonix Multivitamin delivers 100% of your recommended daily value of essential vitamins and nutrients
Chromium: An Unsung Hero of Metabolic Health
Step beyond ordinary multivitamins with a formula designed to do more than just fill nutritional gaps.
Our Isotonix® Multivitamin delivers a precise blend of methylated B vitamins, balanced micronutrients and essential trace minerals — including the standout star: Chromium. At 120 mcg per serving, this trace mineral plays a crucial role in supporting your body's normal glucose metabolism and helping to maintain healthy blood sugar levels — over three times the daily recommended value. Why does it matter? Chromium helps your body use insulin more efficiently, which is key for energy production and overall metabolic wellness.
Product Classification
Dairy Free
Vegetarian
Good Manufacturing Practices
Isotonic
No Detectable GMO
Gluten-Free
The Isotonix Difference
Experience what a multivitamin should really feel like. Most multivitamins are trapped in tablets or capsules, forcing your body to do all the work to break them down, absorb and utilize their nutrients. But nutritional value means nothing without absorption. Isotonix Multivitamin delivers a carefully balanced blend of essential vitamins and minerals in an isotonic solution — the form your body prefers. This means rapid and controlled nutrient delivery. No need to digest a capsule or tablet. Get fast-acting, bioavailable support right when your body needs it.
Key Ingredients & Benefits
Magnesium (as citrate)*
Supports muscle, nerve, and cardiovascular health
Plays a central role in more than 300 enzymatic reactions
Methylcobalamin (B12), P5P-B6 and Folate (as (6S)-5-methyltetrahydrolfolic calcium)*
Supports energy, brain function, and stress resilience
Helps promote healthy methylation, a critical pathway for detox, DNA integrity and hormones
Vitamin D3*
Promotes the absorption of calcium and phosphorus
Supports the production of proteins involved in calcium absorption and storage
Antioxidants*
Vitamins C and E, selenium and beta-carotene
Helps support your cells and neutralize free radicals and environmental stressors
Zinc, Chromium, Manganese & Trace Minerals*
Metabolic support and glucose, thyroid and skin health
Delivered in highly bioavailable forms
Isotonix® Multivitamin for Ultimate Wellness
Even healthy diets might be missing out on essential vitamins and minerals. Help fill in those nutritional gaps with Isotonix Multivitamin, providing 100% or more of the recommended daily value of essential vitamins and minerals. Nourish your body with a single serving each day — available with or without iron for personalized support. No fillers. No binders, No nonsense. Just essential nutrients in a form that works.
Directions for Use
Pour 1 small capful (3.3 g) of Isotonix® Multivitamin Powder into a cup.
Add 60 ml of water and mix.
Drink and enjoy! If mixed with other Isotonix® products, add 2 fl oz of water for each capful.
Isotonix Delivery System
: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
Why is taking a vitamin supplement important?
Even with a balanced diet, many people fall short of getting the essential vitamins and minerals their bodies need daily. Modern farming practices, busy lifestyles, food processing and dietary restrictions can all limit the variety and nutrient density of the foods we eat. Vitamin supplements help bridge these gaps, ensuring your body has the critical nutrients required to support energy production, the immune system, bone health, mental clarity and overall vitality. By giving your body consistent access to essential nutrients, you help support overall wellness that can impact long-term health, empowering you to live better, every day.
Are methylated multivitamins Important?
Yes, for many people methylated multivitamins are important. "Methylated" means certain vitamins—such as B12 (methylcobalamin) and folate (5-MTHF) — are provided in their active, bioavailable forms. This is crucial because up to 40% of the population has a genetic variation (such as MTHFR mutations) that makes it harder to properly process and activate standard forms of B vitamins. Methylated vitamins bypass this issue, supporting energy production, mental clarity, cardiovascular health and detoxification more efficiently. Choosing a multivitamin with methylated nutrients helps ensure that your body can use these vitamins immediately, without unnecessary steps that could slow absorption or effectiveness.
If I already take a quality multivitamin, do I still need additional magnesium, B vitamins or vitamin D3?
While a high-quality multivitamin provides a strong nutritional foundation, certain nutrients — like magnesium, B vitamins and vitamin D3 — are often needed in higher amounts than what multivitamins typically provide. For example, magnesium plays a role in over 600 enzymatic reactions, yet many people fall short due to poor dietary intake. B vitamins, especially in times of stress or high energy demand, may be needed through additional supplementation to support adequate levels beyond a standard multivitamin serving. Vitamin D3 is another key nutrient where higher, individualized supplementation is often recommended, especially for those with limited sun exposure or other lifestyle factors that may demand additional vitamin D3. In short: A multivitamin covers your base needs, but depending on your health goals, lifestyle and lab results, targeted supplementation can provide optimal support.
Isotonix® Multivitamin Research Scope
0
The number of essential vitamins or minerals the human body can make on its own, making supplementation a prudent step to achieve a healthy metabolism.
90–95%
The amount of nutrients delivered for absorption from an isotonic solution, compared to the 20–30% rate from standard capsules and tablets.
-10%
Fewer than 10% of Americans meet adequate intake recommendations for key nutrients through diet alone.
Refernce List
- Anderson RA. Effects of chromium on body composition and weight loss. Nutr Rev. 1998 Sep;56(9):266-70.
- Arthur JR. Functional indicators of iodine and selenium status. Proc Nutr Soc. 1999 May;58(2):507-12.
- Baly DL, Schneiderman JS, Garcia-Welsh AL. Effect of manganese deficiency on insulin binding, glucose transport and metabolism in rat adipocytes. J Nutr. 1990; 120:1075-1079.
- Brown JE, Wahle KW Effect of fish-oil and vitamin E supplementation on lipid peroxidation and whole-blood aggregation in man. Clin Chim Acta. 1990 Dec 14;193(3):147-56.
- Carlisle EM. Silicon as a trace nutrient. Sci Total Environ. 1988; 73:95-106.
- Carlisle EM. The nutritional essentiality of silicon. Nutr Rev. 1982; 40:193-198.
- Couzy F, Lafargue P, Guezennec CY. Zinc metabolism in the athlete: influence of training, nutrition and other factors. Int J Sports Med. 1990 Aug;11(4):263-6.
- Dallman PR. Iron deficiency and the immune response. Am J Clin Nutr. 1987; 46:329-334.
- Daudu PA, Kelley DS, Taylor PC, Burri BJ, Wu MM. Effect of a low beta-carotene diet on the immune functions of adult women. Am J Clin Nutr. 1994 Dec;60(6):969-72.
- Dawson-Hughes B. Vitamin D and calcium: recommended intake for bone health. Osteoporos Int. 1998;8 Suppl 2:S30-4. 6. Feit JM. Calcium and vitamin D supplements for elderly patients. J Fam Pract. 1997 Dec;45(6):471-2.
- Dietary Reference Intakes for Calcium, Phosphorous, Magnesium, Vitamin D, and Fluoride. Washington, DC: National Academy Press; 1997.
- Dreon DM, Butterfield GE. Vitamin B6 utilization in active and inactive young men. Am J Clin Nutr. 1986 May;43(5):816-24.
- Durlach J, Durlach V, Bac P, et al. Magnesium and therapeutics. Magnes Res. 1994; 7:313-328.
- Fairbanks VF. Iron in medicine and nutrition. In: Shils ME, Olson JA, Shike M, Ross AC, eds. Modern Nutrition in Health and Disease. Baltimore, MD: Williams and Wilkins; 1999:193-221.
- Fields M, Lewis CG. Starch diets high in iron can duplicate the severity of copper deficiency in rats fed fructose. J Med Food. 1998; 1:193-199.
- Finch CA, Huebers H. Perspectives in iron metabolism. N Engl J Med. 1982; 306:1520-1528.
- Futoryan T, Gilchrest BA. Retinoids and the skin. Nutr Rev. 1994; 52:299-310.
- Gleeson M, Bishop NC. Elite athlete immunology: importance of nutrition. Int J Sports Med. 2000 May;21 Suppl 1:S44-50.
*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 Rating
4.4 out of 5 star rating.
(62 reviews)
would recommend this product.
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Hello, my husband takes this and enjoys it but my kids were on the DNA miracles multi in the past and want to go back to isotonic vitamins. Can they take this instead? Ages 10 and 7.
Response from Customer Service on 04/30/2026
Thank you for sharing your feedback and question about Isotonix® Multivitamin Without Iron! We're glad to hear your husband enjoys the product and appreciate your family's interest in our Isotonix line.
Since Isotonix® Multivitamin Without Iron is formulated for adults ages 18 and older, we recommend discussing with your children's pediatrician whether an adult formula could be a good fit for them. The recommended daily values for most nutrients are similar for ages 4 and up, so some of our other products may work well for your kids.
Thank you again for reaching out and for trusting Isotonix® with your family's wellness goals. If you have any other questions or need information about our products, please let us know!
PRODUCTS ARE GREAT...WHEN YOU FINALLY GET THEM
by PennyF
on 04/28/2026
Been using Isotonix Multivitamin, Vitamin B and Vitamin D for years. I am on subscription and even with subscription they can't plan and have my order ship when it's supposed to. Most of the time one of the vitamins is out of stock so nothing ships. This last order was processed and sat for a month over the order date due to the multivitamin not being in stock. When I called about this, I was told there was nothing I could do since they were waiting on product. Needless to say, I am looking for another source/product because I am tired of waiting on product that should be readily available when I am on subscription ordering. I am rating low due to poor planning on the company's part and not being to ship consistently for subscription orders
Response from Customer Service on 04/28/2026
Thank you for sharing your feedback, and we truly appreciate your thoughts on this. We understand your frustration with backorders, especially when you’ve been a loyal subscriber. When a product is on backorder, it can be due to a number of reasons such as ingredient sourcing challenges, manufacturing delays, or unexpected increases in demand.
We sincerely apologize for any inconvenience this has caused and realize how important reliable service is to our customers. Your feedback is invaluable to us, and we are working to improve our processes.
Thank you for being a valued customer.
Huge shipping delays
by Anonymous
on 04/24/2026
Had to wait almost 30 days from order placement to arrival. This has occurred the past two times. Obviously inventory issues. Have to find another vitamin company.
Response from Customer Service on 04/24/2026
Thank you very much for sharing your feedback with us. We sincerely apologize for the inconvenience and frustration caused by the shipping delays you experienced. This is certainly not the experience we want for our customers.
A Customer Service representative will be reaching out to you directly to provide further assistance and help resolve this issue. We truly appreciate your patience and understanding, and we hope to have the opportunity to serve you better in the future. Thank you for bringing this to our attention.
nutraMetrix Isotonix® Multivitamin without Iron--
by Anonymous
on 04/13/2026
I really like this multivitamin but don't know why the lid was changed, hence the 4 stars. I liked the old lid that you could use easily to mix the powder with water. Also this time ordering, my shipping date kept getting pushed out multiple times which totaled about a month after I placed my order. When I finally got a shipping notice, it never started tracking. I called customer service and they got it corrected and I finally received my order.
Response from Customer Service on 04/13/2026
Thank you so much for your feedback and for being a valued customer! We're glad to hear you enjoy nutraMetrix Isotonix® Multivitamin without Iron, and we truly appreciate your comments about the lid design and your recent shipping experience. We apologize for the inconvenience you encountered with your order and the delays. Your input helps us continue to improve, and we’re grateful for your patience and understanding. Thank you for sharing your experience with us!
Why did you change the bottle several years ago?
by Anonymous
on 04/11/2026
The bottle cap once served as a way to measure daily dose and water needed to be added to the powder. I don't understand how the new packaging works for measuring my daily dose. Please explain. Thanks.
Response from Customer Service on 04/13/2026
Thank you so much for your feedback and for your question about the new bottle design for nutraMetrix Isotonix® Multivitamin without Iron. We understand the change can be confusing and appreciate the opportunity to clarify.
The smaller cap on the Isotonix bottle can still be used to measure the powder for your daily dose. The new white over cap is designed to measure 2 ounces (60 ml) of water—making it easier to get the right amount of liquid for mixing each serving.
The decision to refreshed the product’s appearance—including the updated outer measuring cap was based off our research that showed most customers mix multiple Isotonix products together in a cup or glass, rather than using the bottle cap for mixing. Because of this, we updated the design for easier measurement of water, while still allowing precise measurement of the powder.
Thank you again for sharing your thoughts and for being a valued member of our community! If you have any other questions, please let us know.
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