Thorne
Thorne Magnesium Glycinate
A simple magnesium glycinate capsule with a meaningful but flexible dose and a restrained formulation.
Score
8.3
/ 10
Dimensions
- Substance
- 2.5 / 3.0
- Better tolerance profile
- Trust
- 2.7 / 3.0
- NSF Contents Certified
- Not sport-certified
- Dose
- 1.5 / 2.0
- Flexible per capsule
- Lower single dose
- Formulation
- 1.6 / 2.0
- Restrained formula
- More excipients than cleanest peers
Our View
A strong magnesium glycinate option with a useful form, flexible dosing, and a meaningfully better trust profile than most capsule magnesium products.
Key ingredients
Inactive ingredients
Hypromellose capsule, Calcium laurate, Leucine, Silicon dioxide.
A Closer Look
The product makes sense when magnesium glycinate is the intended form and a lower per-capsule dose is useful. NSF Contents Certified materially improves the trust case, even though the product still is not the same thing as an athlete-facing NSF Certified for Sport supplement or a single-serving high-dose format.
This is a restrained magnesium product.
The main advantage is that it aims at tolerance without diluting the formula into a broader blend.
Each capsule provides 120 mg of magnesium as magnesium glycinate. That is not a high single-capsule dose, but it gives the product useful flexibility. The dose can fit situations where someone wants to adjust intake gradually rather than commit to a larger serving all at once.
The trust profile is stronger than I originally gave it credit for. Thorne Magnesium Glycinate is listed as NSF Contents Certified, and that matters. It provides a clear third-party verification signal around what is in the product. That does not make it equivalent to an NSF Certified for Sport product, but it is meaningfully better than a magnesium review built only on brand reputation and clean-label positioning.
The formulation is restrained, but not maximally clean. Magnesium glycinate clearly does the work, yet the capsule still uses more excipients than the leanest magnesium capsules in the market. That is a manageable tradeoff, not a major flaw, but it is the real reason formulation stops short of the top score here.
This is a coherent magnesium product. Its value is form quality, dose control, and a stronger public verification signal than most magnesium glycinate capsules in the market.
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