If you compare magnesium supplements only by the number on the front, the choice seems easy: pick the most milligrams for the lowest price. In reality, that number tells only part of the story. The form of magnesium, serving size, supporting ingredients and how well the product fits your routine all matter.

We compared Ultimate Magnesium FLO with four familiar Canadian options: CanPrev Magnesium Bis-Glycinate 200 Gentle, Webber Naturals Magnesium Bisglycinate 200 mg, Natural Calm Magnesium Citrate Powder and AOR Advanced Magnesium Complex. All can supply magnesium. The question is what you want beyond the basic mineral.

Magnesium comparison at a glance

Product	What is inside	Elemental magnesium	Format	Best fit
BETR1 LAB Ultimate Magnesium FLO	Bisglycinate, malate, L-threonate, taurate, citrate + active B6; no oxide	350 mg per two-capsule serving	2 capsules	Best complete formula: broad, transparent and Canadian-made
CanPrev Magnesium Bis-Glycinate 200 Gentle	Bisglycinate blend containing chelate + oxide	200 mg per capsule	1 capsule	Simple one-capsule dose
Webber Naturals Magnesium Bisglycinate 200 mg	Buffered bisglycinate with approximately 140 mg from bisglycinate and 60 mg from oxide	200 mg per capsule	1 capsule	Familiar and widely available
Natural Calm Magnesium Citrate Powder	Magnesium carbonate + citric acid, mixed in water to form citrate	205 mg per teaspoon	Drink powder	People who dislike capsules or want an adjustable amount
AOR Advanced Magnesium Complex	Glycinate, aspartate, malate, ascorbate + vitamin C; no oxide	100 mg per capsule	1–3 capsules	Flexible multi-form dosing with vitamin C

Product formulas can change. This comparison reflects the Canadian manufacturer information reviewed for this article; check your current label before use.

Why Ultimate Magnesium FLO is our top overall choice

Ultimate Magnesium FLO is the only product here that brings together bisglycinate, malate, L-threonate, taurate and citrate, then adds vitamin B6 in its active P-5-P form. It does this without magnesium oxide and without hiding the formula behind a proprietary blend.

That makes it an easy product to understand and feel confident about. You are not paying simply for a fashionable word on the front of the bottle; you are getting a deliberately varied magnesium blend, a sensible elemental dose, a useful supporting vitamin and Canadian manufacturing.

Could a straightforward single-form product be enough for some people? Absolutely. Ultimate Magnesium FLO is for the shopper who wants to go beyond “enough” and choose a more complete formula from the start.

Ultimate Magnesium FLO vs CanPrev Magnesium Bis-Glycinate 200 Gentle

CanPrev keeps things simple: one capsule provides 200 mg of elemental magnesium, and the product is positioned as a gentle everyday bisglycinate. Its ingredient panel shows that the bisglycinate blend also contains magnesium oxide.

CanPrev’s advantage is one-capsule convenience. Ultimate Magnesium FLO’s advantage is the formula itself: five forms instead of a buffered bisglycinate blend, no oxide and active B6. If ingredient quality and breadth are your priority, we would choose Ultimate Magnesium FLO.

Ultimate Magnesium FLO vs Webber Naturals Magnesium Bisglycinate 200 mg

Webber Naturals is familiar, widely available and supplies 200 mg in one capsule. The manufacturer explains that roughly 140 mg comes from fully reacted bisglycinate and 60 mg from magnesium oxide.

That can be a perfectly practical value option. However, shoppers who see “bisglycinate” and expect an entirely oxide-free product may prefer Ultimate Magnesium FLO’s clearer approach. The full two-capsule serving provides 350 mg—150 mg more than Webber Naturals’ one-capsule 200 mg serving—while also offering a broader oxide-free blend and active B6.

Ultimate Magnesium FLO vs Natural Calm

Natural Calm offers a completely different routine. Its powder is mixed into water to create a magnesium citrate drink, and the amount can be adjusted gradually. It is a good fit if you dislike capsules or genuinely enjoy a warm evening drink.

Citrate can also influence bowel regularity, which some people welcome and others do not. Ultimate Magnesium FLO is neater for travel, requires no mixing and offers five forms rather than citrate alone. For day-to-day convenience plus formula breadth, Ultimate Magnesium FLO comes out ahead; for a drinkable ritual, Natural Calm has the edge.

Ultimate Magnesium FLO vs AOR Advanced Magnesium Complex

AOR is the closest competitor in this group. It is Canadian, oxide-free and multi-form, with glycinate, aspartate, malate and ascorbate plus vitamin C. Its 100 mg capsules allow flexible dosing from one to three capsules daily.

AOR makes sense if that adjustable dose or added vitamin C is especially important to you. Ultimate Magnesium FLO provides more magnesium in its standard routine and uses a broader mix that includes L-threonate, taurate and citrate along with active B6. For a ready-made, all-around formula, Ultimate Magnesium FLO is our preference.

Which magnesium fits your routine?

And what about dry eye?

Magnesium supports nerve communication, muscle function, energy production and healthy mineral balance—all relevant to the way our bodies and eyes function. Early nutrition research has also linked higher dietary magnesium intake with a lower likelihood of dry eye in women over 40.

We see magnesium as one supportive part of the bigger picture, not a replacement for artificial tears or an eye examination. If eye health is one reason you are shopping for magnesium, Ultimate Magnesium FLO is particularly appealing because it gives you a well-designed general wellness formula rather than a one-note product.

Read our full magnesium and dry-eye guide for a friendly explanation of the research, or explore why BETR1 chose these five forms.

Frequently asked questions

Is five-form magnesium better than bisglycinate alone?

Not everyone needs five forms, and a good bisglycinate may be enough for basic supplementation. Ultimate Magnesium FLO is the better choice when you want a broader, oxide-free formula with several well-regarded forms and active B6 already combined.

Is magnesium oxide bad?

Not always. It supplies magnesium and can be helpful when a laxative effect is wanted. It is generally less well absorbed than several more soluble forms, which is why many shoppers prefer Ultimate Magnesium FLO’s oxide-free design for daily nutritional support.

Why not simply choose the product with 200 mg?

Serving sizes matter: Ultimate Magnesium FLO provides 350 mg across two capsules, while these 200 mg products use a one-capsule serving. It also delivers five forms and active B6 without relying on oxide.

Is Ultimate Magnesium FLO worth paying more for?

We think so for someone who values what makes it different: five named forms, no oxide, active B6, transparent labelling, third-party testing and Canadian manufacturing. If your only goal is the lowest price per milligram, a simpler product may suit you; if you want the most complete formula here, Ultimate Magnesium FLO is the standout.

Can I combine two magnesium products?

Usually there is no reason to stack products casually. Add up all supplemental magnesium first, since too much can cause diarrhea or cramping. Ask a pharmacist if you take medication or have kidney concerns.

Sources

• BETR1 LAB: Ultimate Magnesium FLO
• CanPrev: Magnesium Bis-Glycinate 200 Gentle
• Webber Naturals: Magnesium Bisglycinate 200 mg
• Natural Calm Canada: Magnesium Citrate Powder
• AOR Canada: Advanced Magnesium Complex
• NIH Office of Dietary Supplements: Magnesium fact sheet

This comparison is educational and reflects public manufacturer information reviewed for this article. Products and labels can change. Consult a healthcare professional about your dose, medications or health conditions.