Trying to work out which Metagenics magnesium supplement is right for you? You're not alone. With products such as MetaRelax, EnergyX, FemmeX, MagActive Muscle and Fibroplex Plus, the Metagenics magnesium range can seem confusing — particularly if you've used these supplements for years and remember them by their former names.
Perhaps you've been searching for Metagenics CalmX, Fibroplex MagActive or a particular magnesium powder recommended by your practitioner. Or perhaps you're comparing magnesium glycinate tablets with powders and wondering why the formulas are so different.
This guide from Health Potential Australia explains the established Metagenics magnesium products, how their formulations differ, and what to look for when choosing between them.
We'll focus on the products customers already know, rather than every newly released supplement containing magnesium.
Why are there so many Metagenics magnesium products?
Magnesium is an essential mineral involved in hundreds of processes throughout the body, including normal muscle function, nervous system function and energy metabolism.
However, Metagenics does not use the same magnesium formulation in every product.
Some products combine magnesium with amino acids such as taurine and glutamine. Others include B vitamins, zinc or nutrients selected for a more specialised formulation.
The amount of elemental magnesium also varies. This is important because the total weight of a magnesium compound is not the same as the amount of magnesium it supplies.
For example, a tablet containing 299 mg of magnesium bisglycinate does not necessarily provide 299 mg of elemental magnesium.
When comparing Metagenics magnesium supplements, consider:
- The amount of elemental magnesium per serving
- The form of magnesium used
- Other active ingredients
- Powder versus tablet format
- The manufacturer's recommended directions
- Whether the product is a general magnesium supplement or a specialised formulation
Metagenics magnesium comparison at a glance
The following table focuses on established products within the Metagenics range.
| Product | Main formulation focus | Key difference | Format |
|---|---|---|---|
| MetaRelax Powder (formerly CalmX) | Magnesium and nutritional support for a healthy stress response | Magnesium glycinate with taurine, glutamine, vitamin C, B vitamins and zinc | Powder |
| MetaRelax Daily | Everyday magnesium supplementation | Magnesium glycinate blend with B vitamins, vitamin C and zinc, without the taurine and glutamine combination found in the powder | Tablets |
| EnergyX | Energy metabolism and nutritional support | Magnesium within a broader energy-focused nutrient formula | Powder |
| FemmeX | Women's nutritional support | Magnesium combined with nutrients selected for a women's health formulation | Powder |
| MagActive Muscle Powder (formerly Fibroplex MagActive Powder) | Muscle function and magnesium supplementation | Magnesium combined with supporting nutrients in a powder formulation | Powder |
| MagActive Muscle Tablets (formerly Fibroplex MagActive Tablets) | Convenient magnesium and muscle support | Tablet-based magnesium formulation with additional nutrients | Tablets |
| Fibroplex Plus | Specialised muscle and magnesium nutritional support | A broader combination of magnesium and supporting nutrients | Powder |
| SleepX | Sleep-related formulation | Magnesium within a specialised formula rather than a general magnesium-only supplement | Check current pack |
| PainX | Specialised pain-related formulation | Magnesium combined with other ingredients, including PEA | Powder |
| Fibroplex MagActive for Kids | Children's nutritional and magnesium support | Age-specific formulation with directions for children | Powder |
The table is a general formulation guide, not a recommendation to use these products for particular medical conditions. Check current product labels for exact ingredients, indications and directions.
Metagenics MetaRelax Powder: Formerly CalmX
One of the most useful things to know about the Metagenics magnesium range is that MetaRelax Powder was previously marketed as CalmX.
If you've been looking for CalmX because it was recommended by your practitioner, MetaRelax Powder is the name to investigate.
The MetaRelax Powder formulation combines magnesium with taurine, glutamine, vitamin C, B vitamins and zinc.
This makes it different from a basic magnesium-only powder.
Why do customers choose MetaRelax Powder?
Customers may prefer MetaRelax Powder when they are looking for:
- A powder-based magnesium supplement
- A formula containing magnesium and amino acids
- Nutritional support for normal muscle and nervous system function
- A familiar product previously known as CalmX
- Raspberry or Tropical flavour options
MetaRelax Powder is available in different flavours and pack sizes, making it suitable for customers who prefer mixing their supplements with water rather than swallowing tablets.
Looking for CalmX? Explore Metagenics MetaRelax Powder at Health Potential.
MetaRelax Powder vs MetaRelax Daily: What's the difference?
Although the names are similar, MetaRelax Powder and MetaRelax Daily are different formulations.
This is one of the most important distinctions in the Metagenics magnesium range.
MetaRelax Powder
MetaRelax Powder, formerly CalmX, combines magnesium with taurine, glutamine, vitamin C, B vitamins and zinc.
It is mixed with water and taken according to the manufacturer's directions.
MetaRelax Daily
MetaRelax Daily is a tablet-based formula containing magnesium, B vitamins, vitamin C and zinc.
Each tablet provides 210 mg of elemental magnesium, supplied through a combination of magnesium bisglycinate and magnesium amino acid chelate.
The formulation also includes vitamins B1, B2, B3 and B5.
MetaRelax Daily is available in 30-tablet and 60-tablet sizes.
Which should you choose?
The choice is not simply about whether powder or tablets are better.
MetaRelax Powder contains additional amino acids that are not part of the MetaRelax Daily formulation. MetaRelax Daily offers a convenient tablet format and a clearly defined amount of elemental magnesium per tablet.
If you've previously used CalmX, don't assume MetaRelax Daily is the same product simply because the names are similar.
Compare Metagenics MetaRelax Powder and MetaRelax Daily at Health Potential.
Metagenics EnergyX: Magnesium within an energy-focused formula
Metagenics EnergyX is another established product containing magnesium, but it has a different nutritional focus from MetaRelax.
EnergyX is formulated around nutrients selected to support normal energy metabolism and related physiological functions.
Rather than treating it as a substitute for a general magnesium supplement, it is more useful to consider the complete EnergyX formulation.
When comparing EnergyX with MetaRelax or MagActive Muscle, check the current ingredient panel for:
- Elemental magnesium per serving
- B vitamins and other supporting nutrients
- Additional active ingredients
- Serving size and directions
Explore Metagenics EnergyX at Health Potential.
Metagenics FemmeX: A different approach to women's nutritional support
Metagenics FemmeX is another familiar name within the practitioner supplement range.
Although FemmeX contains magnesium, it is not simply a magnesium powder with a different label.
It belongs to a broader category of specialised women's nutritional formulations, combining magnesium with other ingredients selected for the product's overall purpose.
For customers who have previously been recommended FemmeX, the best approach is to compare the current FemmeX ingredient panel with the exact product and formulation they used before.
It is also important not to confuse FemmeX with Metagenics Femme Essentials Multivitamin and Mineral. These are different products.
Explore Metagenics FemmeX at Health Potential.
Metagenics MagActive Muscle: Formerly Fibroplex MagActive
If you've been searching for Metagenics Fibroplex MagActive, you may now encounter products labelled MagActive Muscle.
This is another name change worth understanding when shopping for familiar practitioner supplements.
The MagActive Muscle range includes both powder and tablet options.
MagActive Muscle Powder
MagActive Muscle Powder provides magnesium in a powder formulation with additional supporting nutrients.
It is worth comparing with MetaRelax Powder because both contain magnesium, but their complete formulations and intended uses differ.
MagActive Muscle Tablets
MagActive Muscle Tablets offer a convenient alternative for customers who prefer tablets.
The tablet formulation is not necessarily identical to the powder, so the two should be compared using their respective ingredient panels rather than assuming they deliver the same nutrients.
Is MagActive Muscle the same as Fibroplex Plus?
No. MagActive Muscle and Fibroplex Plus are distinct formulations.
Although the product names share a history within the Metagenics muscle-support range, their ingredient combinations should be checked separately.
Explore Metagenics MagActive Muscle Powder and MagActive Muscle Tablets at Health Potential.
Metagenics Fibroplex Plus: How is it different?
Fibroplex Plus is another established Metagenics product that customers may remember from earlier practitioner recommendations.
It combines magnesium with additional nutrients in a specialised formulation.
Fibroplex Plus should not automatically be substituted for MagActive Muscle Powder, MagActive Muscle Tablets or MetaRelax.
The appropriate comparison depends on the full ingredient profile, the amount of elemental magnesium and the manufacturer's current directions.
If you have been taking Fibroplex Plus for some time, check the exact product name and formulation before changing to another magnesium supplement.
Explore Metagenics Fibroplex Plus at Health Potential.
Metagenics SleepX: A specialised sleep-related formula
Metagenics SleepX also appears among the manufacturer's magnesium-containing products.
However, SleepX is a specialised formulation rather than a straightforward alternative to MetaRelax or MagActive Muscle.
Customers comparing SleepX with other Metagenics magnesium supplements should review the full ingredient panel, including any additional herbal or nutritional ingredients.
The presence of magnesium alone does not mean that two products have the same formulation or intended use.
Explore Metagenics SleepX at Health Potential.
Metagenics PainX: Magnesium and PEA
Metagenics PainX is another specialised product in the broader magnesium-containing range.
Its formulation includes magnesium alongside palmitoylethanolamide (PEA), a naturally occurring fatty acid amide that has been investigated in research relating to pain signalling and inflammatory processes.
This makes PainX different from general magnesium products such as MetaRelax Daily.
The inclusion of PEA does not mean that all magnesium products provide the same effects or that PainX should be substituted for another product without considering the complete formulation.
Explore Metagenics PainX at Health Potential.
Fibroplex MagActive for Kids: Children's magnesium support
Metagenics also offers Fibroplex MagActive for Kids, a formulation developed specifically for children.
Children's magnesium requirements, product directions and appropriate supplement choices differ from those for adults.
A children's formula should not be treated as an interchangeable version of an adult magnesium supplement.
Always follow the current age-specific directions and seek advice from an appropriately qualified healthcare professional when needed.
Explore Fibroplex MagActive for Kids at Health Potential.
Magnesium glycinate, bisglycinate, citrate and other forms explained
One reason magnesium supplements can be confusing is that the mineral appears in several chemical forms.
Magnesium glycinate and magnesium bisglycinate
Magnesium glycinate is a form of magnesium associated with the amino acid glycine.
The terms magnesium glycinate and magnesium bisglycinate are often used in supplement descriptions, although individual ingredient specifications and formulations can differ.
These forms are commonly found in practitioner magnesium supplements.
Magnesium amino acid chelate
A magnesium amino acid chelate is magnesium bound to amino acids.
The precise composition depends on the ingredient used by the manufacturer.
Magnesium citrate
Magnesium citrate is another commonly used form of magnesium.
It appears in various nutritional supplements and differs chemically from magnesium glycinate.
Magnesium oxide
Magnesium oxide contains a relatively high proportion of elemental magnesium by weight, but the amount absorbed can differ from other magnesium forms.
Magnesium chloride and magnesium ascorbate
These forms also appear in selected Metagenics products.
For example, the broader Metagenics catalogue includes magnesium-containing formulas where magnesium is not the main reason customers would choose the product.
Why elemental magnesium matters
The most useful number to compare is often the elemental magnesium per recommended serving, rather than the weight of the magnesium compound.
A product may contain several magnesium compounds, so the total elemental magnesium can be the sum of magnesium supplied by each ingredient.
Always check the manufacturer's ingredient panel rather than relying on the largest milligram number printed on the label.
What about other Metagenics products containing magnesium?
Magnesium is also included in products such as:
- Calm Care for Kids
- CardioX
- Femme Essentials Multivitamin and Mineral
- High Strength BioEssentials
- Male Essentials Multivitamin and Mineral
- Mineral Essentials
- Meta B Complex
- C-Ultrascorb
- Zinc Drink
These products are not all intended to be direct alternatives to MetaRelax, MagActive Muscle or Fibroplex Plus.
For example, a multivitamin containing magnesium has a different overall formulation from a dedicated magnesium supplement.
This guide therefore concentrates on the established products most relevant to customers comparing Metagenics magnesium options.
Which Metagenics magnesium product should you choose?
The best starting point is to identify why you're considering magnesium and which formulation you have previously used.
If you're looking for the product formerly called CalmX: Start by reviewing MetaRelax Powder.
If you prefer a daily magnesium tablet: Compare MetaRelax Daily with the tablet-based MagActive Muscle formulation.
If you're comparing magnesium powders: Review MetaRelax Powder, MagActive Muscle Powder and Fibroplex Plus side by side.
If you're looking for an established energy-focused formulation: Review EnergyX.
If you're looking for a specialised women's nutritional formula: Review FemmeX.
If your practitioner previously recommended SleepX or PainX: Check those exact formulations rather than substituting a general magnesium product.
If you're choosing for a child: Use an age-appropriate product and follow the current directions.
There isn't one Metagenics magnesium product that is automatically best for everyone. The most appropriate choice depends on the complete formulation, the amount of magnesium supplied and your individual needs.
Frequently asked questions about Metagenics magnesium
Is Metagenics CalmX now called MetaRelax?
MetaRelax Powder was previously marketed as CalmX. Customers searching for the older product name should review the current MetaRelax Powder formulation and compare it with their previous packaging.
Is MetaRelax Daily the same as MetaRelax Powder?
No. MetaRelax Daily is a tablet formula containing magnesium, B vitamins, vitamin C and zinc. MetaRelax Powder also includes substantial quantities of taurine and glutamine. They are different formulations.
How much magnesium is in MetaRelax Daily?
Each MetaRelax Daily tablet contains 210 mg of elemental magnesium, supplied through magnesium bisglycinate and magnesium amino acid chelate.
Always check the current product label for directions and any formulation updates.
Is Fibroplex MagActive now called MagActive Muscle?
The MagActive Muscle range is associated with the earlier Fibroplex MagActive naming. Customers should confirm the current product and ingredient panel before assuming an older and newer formulation are identical.
What is the difference between MagActive Muscle and Fibroplex Plus?
They are different Metagenics formulations. Although both contain magnesium, their additional ingredients and product directions differ.
Does Metagenics EnergyX contain magnesium?
Yes. EnergyX is among the established Metagenics products containing magnesium, but it is formulated as a broader energy-focused nutritional product.
Does Metagenics FemmeX contain magnesium?
Yes. FemmeX contains magnesium as part of a specialised women's nutritional formulation.
Which Metagenics magnesium is best for muscle function?
Several Metagenics products contain magnesium, which contributes to normal muscle function. Compare elemental magnesium, other ingredients and current product indications rather than choosing by the product name alone.
Are magnesium powders better than tablets?
Not necessarily. Powders and tablets differ in convenience, serving size and formulation. The amount of elemental magnesium and other active ingredients are generally more useful comparison points than format alone.
Can I take more than one Metagenics magnesium supplement?
Combining supplements can increase your total intake of magnesium and other nutrients, including zinc and B vitamins. Check the labels and seek professional advice before combining products.
Shop Metagenics magnesium supplements in Australia
At Health Potential, we stock practitioner-grade supplements, including established products from the Metagenics range.
Whether you're searching for MetaRelax Powder (formerly CalmX), MetaRelax Daily, EnergyX, FemmeX, MagActive Muscle or Fibroplex Plus, our aim is to help you identify the correct product and understand the differences before ordering.
Health Potential is operated by naturopathic practitioner Yvonne O'Sullivan and offers Australia-wide shipping.
Explore the Metagenics magnesium range at Health Potential and compare the formulations that suit your needs.
Important: This guide provides general product and nutritional information only. It is not personalised medical advice. Supplements should be used according to their current labels, and a healthcare professional should be consulted where appropriate.