Do I need NutraMetrix to buy Isotonix products?

No, standard Isotonix products are sold directly through isotonix.com and its regional stores.

Company & Buying · Explainer

NutraMetrix vs Isotonix: What’s the Difference?

Q: Is NutraMetrix the same company as Isotonix?

Both are nutraceutical brands under Market America. NutraMetrix sells a customizable blend built from 18 Isotonix formulas plus its own exclusive lines.

Both names show up under the Market America umbrella, and it’s easy to land on one site expecting the other. Here’s the plain version: what NutraMetrix actually is, how it relates to Isotonix, and which one matches what you’re actually looking for.

By Vivian Yeh · Inspire Review TeamUpdated July 29, 2026· 6 min read· ✓ Fact-checked

Isotonix and NutraMetrix, both Market America nutraceutical brands

Key takeaways

NutraMetrix and Isotonix are both nutraceutical brands under Market America — they are related, not competitors.
NutraMetrix’s own site sells a customizable “Isotonix Custom Cocktail” built from 18 Isotonix formulas, plus its own separate lines: OPC-3 Burst, GlutaQ, a DNA Miracles baby-care line, and a pet vitamin line.
NutraMetrix’s differentiator is personalization — it offers a “Nutri-Physical” questionnaire to tailor recommendations, rather than one-size-fits-all products.
If you just want the flagship, straightforward Isotonix formula (like OPC-3), you do not need to go through NutraMetrix at all — the standard Isotonix stores carry it directly.

What NutraMetrix actually is

NutraMetrix is a nutraceutical brand in the Market America family — the same parent company behind Isotonix. Rather than positioning itself as a separate competing supplement line, NutraMetrix leans into customization: its site features an “Isotonix Custom Cocktail” built from a selection of 18 Isotonix supplements that you combine into one canister based on your own needs, plus a “Nutri-Physical” — a personalized questionnaire covering diet, exercise and sleep habits meant to guide which formulas make sense for you.

What NutraMetrix sells beyond the Isotonix blend

Line	What it is
Isotonix Custom Cocktail	Pick-your-own blend from 18 Isotonix formulas in a single canister
nutraMetrix OPC-3® Burst	NutraMetrix’s own OPC-3 variant, sold separately from standard Isotonix OPC-3
GlutaQ®	A glutathione-related supplement, unique to the NutraMetrix line
DNA Miracles®	A baby-care line: lotion, shampoo/wash, diaper cream
Pet Health Multivitamin	A multivitamin formulated for dogs
GoTrim System	A structured weight-management program (GoTrim is also sold directly through SHOP.COM)

Prefer the standard formula? Shop Isotonix OPC-3 directly

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✓ Official Isotonix store · ships to your country · some links are affiliate links.

So which one should you actually use?

If you already know you want a specific, standard Isotonix product — OPC-3, Calcium Plus, B-Complex and so on — there is no need to route through NutraMetrix at all. The regular regional Isotonix stores (isotonix.com and its country subdomains) sell those directly, and that is what every other review on this site links to.

NutraMetrix makes more sense if you specifically want the customization layer: combining several formulas into one canister, or going through the Nutri-Physical questionnaire to get a recommendation rather than picking a product yourself. It is also the only place to get NutraMetrix-exclusive items like GlutaQ or the DNA Miracles baby-care line, since those are not sold under the Isotonix name.

Frequently asked questions

Some links on this page are affiliate links: if you buy through them we may earn a commission at no extra cost to you. All links go to the official regional store.

Is NutraMetrix the same company as Isotonix?−

They are both nutraceutical brands under Market America, the same parent company. NutraMetrix is not a competitor to Isotonix — its own site sells a customizable blend built from 18 Isotonix formulas.

What does NutraMetrix sell that Isotonix doesn’t?+

NutraMetrix-exclusive lines include GlutaQ, the DNA Miracles baby-care line, and a pet multivitamin. It also sells its own nutraMetrix OPC-3 Burst variant, separate from standard Isotonix OPC-3.

What is the Nutri-Physical?+

A personalized questionnaire on the NutraMetrix site covering diet, exercise and sleep habits, used to help tailor which formulas might suit you rather than picking off a generic list.

Do I need to go through NutraMetrix to buy Isotonix products?+

No. Standard Isotonix products like OPC-3 and Calcium Plus are sold directly through isotonix.com and its regional stores — you do not need NutraMetrix for those.

Is the NutraMetrix Isotonix Custom Cocktail the same as buying products individually?+

It lets you combine a selection from 18 Isotonix formulas into one canister rather than buying each separately — a convenience/customization option, not a different formula.

✓

our take

Our verdict

“Not a rival brand — a related, customization-focused sibling. If you know what you want, standard Isotonix is the simpler path; if you want a tailored blend, NutraMetrix is built for that.”

For most readers of this site, the direct Isotonix product lines (reviewed throughout) are the straightforward choice. Consider NutraMetrix specifically if you want the custom-cocktail flexibility or its exclusive lines like GlutaQ.

How we review: formula research, published evidence, years of stocking and shipping these products, cross-checked against NIH and Examine. No payment accepted for positive reviews.

✓ Reader discount

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Official store only. Some links are affiliate links.

Standard Isotonix OPC-3 — no NutraMetrix custom blend required

Sources

Brand and product information: nutrametrix.com (accessed July 2026).
Parent company background: marketamerica.com.

Reviewed by the Inspire Distribution team. These statements have not been evaluated by the FDA and are not intended to diagnose, treat, cure or prevent any disease.