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Independent·Affiliate-disclosed·Spec-verified·Updated August 7, 2026
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Head-to-head buyer guide

BiOptimizers Magnesium Breakthrough vs Thorne Magnesium Bisglycinate

Specs, prices, editor verdict, and who should buy which - compared side-by-side.

By Ryan · Founder
Updated Jun 23, 2026
Quick verdict

BiOptimizers Magnesium Breakthrough (mid, $35.19–$39.99) vs Thorne Magnesium Bisglycinate (mid, $52) - different tools for different jobs (see the per-product details below).

Compared on 3 shared specs · same category (supplement).

BiOptimizers Magnesium Breakthrough capsule bottle with all 7 forms of magnesium
BiOptimizers

Magnesium Breakthrough

The magnesium that turned the category from "buy whatever's on the shelf" into "wait, which form?" - seven types in one capsule, from the brand that built its name on the question.

PRICE
$35.19–$39.99
SCORE
8.0 / 10
Thorne Magnesium Bisglycinate powder
Thorne

Magnesium Bisglycinate

Magnesium is one of the few supplements with a genuine population-level case, but the form is everything. Thorne uses the chelated bisglycinate form most people actually tolerate.

PRICE
$52
The verdict

These are close picks. Both score in the same range. The right call depends on buyer profile - read the per-buyer recommendations below.

Side-by-side specs

SpecBiOptimizers Magnesium BreakthroughThorne Magnesium Bisglycinate
price$35.19–$39.99$52
servings30 per bottle60/jar
dose2 caps200mg elemental/serving
certificationscGMP, third-party testedNSF Certified for Sport

BiOptimizers Magnesium Breakthrough also publishes: forms

Thorne Magnesium Bisglycinate also publishes: form, sweetener

Who should buy which

Pick the BiOptimizers Magnesium Breakthrough if

Buyers who want a credible all-purpose magnesium without researching which form to take, and who can tolerate aggressive brand marketing in exchange for a well-formulated stack.

Skip if

You already know you want a specific form (glycinate for sleep, threonate for cognition), or you prefer minimalist clinician-brand aesthetics like Thorne or Pure Encapsulations.

Pick the Thorne Magnesium Bisglycinate if

Anyone who wants a well-absorbed, gentle magnesium for evening or recovery use, or who reacted badly to cheap magnesium oxide.

Skip if

You already get enough magnesium from diet, or you want a capsule rather than a mix-in powder.

Go deeper

FULL REVIEW
Read the BiOptimizers Magnesium Breakthrough review →
FULL REVIEW
Read the Thorne Magnesium Bisglycinate review →

Frequently asked

Which is better, the BiOptimizers Magnesium Breakthrough or the Thorne Magnesium Bisglycinate?

They are closely matched on our scoring, so the right pick comes down to your priorities. The verdict and spec table above compare them on price, features, and who each one suits.

How much do they cost?

BiOptimizers Magnesium Breakthrough: $35.19 to $39.99. Thorne Magnesium Bisglycinate: $52. Prices are verified against the manufacturer; check the live links for current pricing.

Who should buy which one?

BiOptimizers Magnesium Breakthrough: Buyers who want a credible all-purpose magnesium without researching which form to take, and who can tolerate aggressive brand marketing in exchange for a well-formulated stack. Thorne Magnesium Bisglycinate: Anyone who wants a well-absorbed, gentle magnesium for evening or recovery use, or who reacted badly to cheap magnesium oxide.