CuratedFit
CURATEDFIT SUMMARY
Passes because this is a single magnesium form, bisglycinate, with no other magnesium types combined under an undisclosed total, avoiding the ratio-disclosure issue that has driven fail verdicts for multi-form magnesium products elsewhere in this catalogue. Magnesium bisglycinate is flagged rather than failed on natural origin, consistent with the CuratedFit Standard's mineral active precedent. Manufacturing location is confirmed, and the allergen-free disclosure is unusually thorough.
WHAT IT IS
A vegan capsule providing 105 mg of elemental magnesium per capsule, sourced from magnesium bisglycinate, magnesium bound to two glycine amino acid molecules. This chelated form is commonly chosen for its gastrointestinal tolerance and absorption relative to other magnesium salts. Life Extension also sells several other single and multi-form magnesium products, including a magnesium taurate formula and a three-form blend, positioning this glycinate version specifically for general daily use, sleep, stress, and muscle recovery.
WHO IT IS FOR
Someone who wants a single, clearly dosed magnesium form for general daily use, rather than a multi-form blend, and who is not specifically targeting one of magnesium's more specialised applications like cognitive support (which the manufacturer's threonate product targets) or acute GI regularity (which their oxide product targets).
INGREDIENT BREAKDOWN
Magnesium (from Magnesium Bisglycinate)
105 mg 1 capsule, %RI: 28% (84% at the maximum 3-capsule serving)
A single, clearly disclosed magnesium form, bound to glycine to form a chelate. Under the CuratedFit Standard's mineral active precedent, this is flagged rather than failed on natural origin, since it is an industrially manufactured compound rather than a biosynthesized active. Because this product uses only one magnesium form rather than combining several under a single total, it avoids the specific transparency issue that has failed other multi-form magnesium products reviewed in this catalogue.
Other ingredients
Microcrystalline Cellulose (bulking agent), Magnesium Salts of Fatty Acids (anti-caking agent)
CERTIFICATIONS
Informed Sport
Not Confirmed
Banned substance tested
Not Confirmed
GMP Certified
Certified
Heavy metals tested
Unclear
BRCGS
Not Confirmed
FSSC 22000
Not Confirmed
CURATEDFIT STANDARD CHECK
Warning
As Natural As Possible
Magnesium bisglycinate is an industrially manufactured mineral chelate, flagged per the CuratedFit Standard's mineral active precedent, not failed
Info
Contains What It Claims
Dose is disclosed precisely (105 mg per capsule). CuratedFit has not seen a specific independent lab report for this product, though the manufacturer states a general testing process covering potency
Pass
Every Ingredient Earns Its Place
Only two functional excipients present, both standard and disclosed. No synthetic preservatives, sweeteners, or flavourings
Pass
No Insect-Derived Ingredients
No animal or insect derived ingredients present
Pass
No Proprietary Blends
Single magnesium form, no blend of multiple forms under one total
Pass
Allergen Declaration
Manufacturer explicitly states the product is free from milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, sesame, and soybeans
Pass
Sugar Content Declared
No sugar ingredient present
Pass
Artificial Sweeteners and Flavorings
None present
Warning
Heavy Metals and Contaminants
Manufacturer states a general testing process covering heavy metals and microbes across its products. Not a product-specific report, but a more specific claim than a general quality statement
Pass
Banned Substance Risk Declared
Single mineral compound, not a banned substance
Pass
Country of Manufacture Noted
Confirmed. Manufacturer states the product is manufactured in the USA in a GMP-compliant facility
TRANSPARENCY NOTE
This is a straightforward, well disclosed single-mineral product. The main thing worth noting is what it avoids rather than what it includes, unlike several multi-form magnesium products reviewed elsewhere in this catalogue, this one uses only magnesium bisglycinate, so there's no undisclosed ratio between different magnesium salts to worry about. The full 315 mg maximum daily dose (across three capsules) traces back to a single, clearly identified compound.
The allergen disclosure here is more thorough than most products reviewed in this catalogue, explicitly naming all major EU and UK allergen categories rather than a shorter or partial list. Manufacturing location and GMP compliance are both explicitly confirmed, and the heavy metals testing claim, while not product-specific, is more concrete than a generic quality assurance statement, since it names the specific testing categories involved.
FREQUENTLY ASKED QUESTIONS
Why is magnesium bisglycinate flagged if it's a popular, well-regarded form?
The flag relates to natural origin, magnesium bisglycinate is an industrially manufactured mineral compound rather than a biosynthesized active, which is treated consistently across all mineral products in this catalogue regardless of the compound's popularity or absorption profile.
Does this contain a blend of multiple magnesium forms?
No. It's a single form, magnesium bisglycinate, with no other magnesium salts combined under the total.
How is this different from Life Extension's other magnesium products?
The manufacturer positions its magnesium range by use case, this glycinate version for general daily use, a taurate version for stress and heart health, a threonate version for cognitive support, and a three-form blend for broader whole-body coverage. Each is a separate, individually sold product rather than options within this one.
Has this been tested for heavy metals or contaminants?
The manufacturer states a general testing process across its products covering heavy metals, microbes, potency, and active ingredient content. CuratedFit has not seen a lab report specific to this individual product.
Is this suitable for vegans?
Yes, per the manufacturer's stated claim.
Where is this manufactured?
The manufacturer states this product is manufactured in the USA in a facility that complies with GMP standards.
Can this be taken alongside medication?
The manufacturer states there's no known evidence of negative interaction with prescription medication, but recommends informing your healthcare provider about any supplements you're taking.
Sources:
Life Extension Europe Magnesium Glycinate product page
10/6/26
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