Magnesium Glycinate
Magnesium glycinate supplement. NSF Certified for Sport. No artificial colors, no titanium dioxide, no synthetic additives. Thorne is trusted by professional athletes and healthcare practitioners.
How scores are calculated
Materials (40%): How plastic-free the product is — raw materials, construction, and coatings.
Packaging (20%): Is the product packaged in plastic? Is it recyclable?
Transparency (20%): Does the brand disclose ingredients, sourcing, and manufacturing?
Durability (20%): How long does it last? Longer-lasting products reduce plastic waste over time.
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Last updated: April 6, 2026
Supplement capsules and tablets are often made from gelatin (animal-derived), hydroxypropyl methylcellulose (HPMC, a synthetic polymer), or titanium dioxide. Supplement bottles are typically plastic. The supplement industry has less regulatory oversight than pharmaceuticals, and many products contain undisclosed additives.
Why We Recommend This Product
Thorne's NSF Certified for Sport status means their products are tested for banned substances and contaminants — one of the most rigorous supplement certifications available. Their clean formulations avoid the synthetic additives common in conventional supplements.
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