Disclosure: We earn commissions on purchases made through our links. This never influences our scores. Editorial policy
Thorne vs Pure Encapsulations Magnesium Glycinate (2026)
Disclosure: We earn commissions on purchases made through our links. This never influences our scores. Editorial policy
The Verdict
Both products score A- overall, making this one of the closest matchups in our database. Pure Encapsulations wins on transparency (A+ vs A) thanks to its hypoallergenic formulation and exemplary labeling. Thorne wins on value ($0.23/day vs $0.33/day) with a higher dose per capsule. If you have sensitivities or allergies, Pure Encapsulations' hypoallergenic formula is worth the premium. For everyone else, Thorne offers better value at a comparable quality tier.
Thorne Magnesium Bisglycinate
Thorne
Pure Encapsulations Magnesium (Glycinate)
Pure Encapsulations
Head-to-Head Comparison
| Category | Thorne Magnesium Bisglycinate Thorne | Pure Encapsulations Magnesium (Glycinate) Pure Encapsulations |
|---|---|---|
| Brand Score | 90/100Winner | 83/100 |
| Dosing & Form | 25/25Winner | 18/25 |
| Purity | 23/25Winner | 23/25 |
| Value | 19/25Winner | 17/25 |
| Transparency | 23/25 | 25/25Winner |
| Cost/Day | $0.23Winner | $0.33 |
| Dose/Serving | 200mg | 120mg |
| Form | magnesium bisglycinate chelate | magnesium glycinate |
| Third-Party Tested | ✓ Yes | ✓ Yes |
| Proprietary Blend | No | No |
Why This Comparison Matters
Thorne and Pure Encapsulations are the two most recommended practitioner-grade supplement brands. Both are regularly stocked in integrative medicine offices, and both target buyers who want pharmaceutical-quality supplements without unnecessary fillers. This is the most common magnesium comparison for quality-focused buyers.
Both products use the glycinate/bisglycinate form of magnesium, which research shows is better absorbed and causes less GI distress than cheaper oxide or citrate forms. The differences come down to dose per capsule, third-party testing specifics, allergen considerations, and cost per effective daily dose.
Here is how they stack up across our four scoring categories.
Detailed Score Breakdown
Thorne Magnesium Bisglycinate
Thorne
Magnesium bisglycinate chelate from a practitioner-trusted brand
NSF Certified for Sport on many Thorne products. Thorne exceeds cGMP standards. Third-party tested by independent labs.
$0.23/day at 200mg elemental - premium but competitive for practitioner-grade quality
Clean label. Minimal excipients. Elemental magnesium amount clearly stated. Form precisely identified.
Thorne's manufacturing standards are among the highest in the industry. Trusted by Mayo Clinic and numerous sports teams.
Pure Encapsulations Magnesium (Glycinate)
Pure Encapsulations
Pure magnesium glycinate at a clinical dose per serving
Third-party tested by Eurofins/Silliker. Hypoallergenic - free from gluten, dairy, soy, eggs, peanuts, and all major allergens. GMP+ certified.
$0.33/day at 240mg elemental (2 capsules) - premium pricing reflects hypoallergenic formulation and practitioner-grade standards
Exemplary label transparency. Every excipient listed. Hypoallergenic certification. No fillers, no unnecessary ingredients.
The gold standard for people with food sensitivities or allergies. Recommended by many integrative medicine practitioners.
How We Compared These Products
Every product in our database is scored on four equally-weighted pillars: dosing accuracy and form quality, purity verification (third-party testing), cost per clinically effective dose (not cost per pill), and label transparency. Each pillar is worth 25 points for a total of 100.
Cost per effective dose is calculated using the clinically studied dose from published research, not the manufacturer's suggested serving. If a product requires multiple servings to reach the dose used in clinical trials, that cost is reflected in the value score.
For a full explanation of our scoring methodology, see our methodology page. Prices were last checked on the dates listed for each product and may have changed.
Frequently Asked Questions
Is Thorne or Pure Encapsulations magnesium better?
Both score A- overall. Pure Encapsulations has the edge if you have allergies or sensitivities, its hypoallergenic formulation excludes wheat, gluten, eggs, peanuts, and artificial additives. Thorne has the edge on value ($0.23/day vs $0.33/day) with a higher dose per capsule. Neither is wrong. Both are practitioner-grade products at a similar quality tier.
What is the difference between magnesium bisglycinate and magnesium glycinate?
Functionally nothing. 'Bisglycinate' and 'glycinate' refer to the same chelated form of magnesium bound to two glycine molecules. Thorne uses the 'bisglycinate' name; Pure Encapsulations uses 'glycinate.' Both products deliver the same well-absorbed, GI-friendly form that clinical research supports for sleep, muscle function, and blood pressure.
Does Pure Encapsulations' hypoallergenic formulation actually matter?
Only if you have specific sensitivities. For buyers with food allergies, autoimmune conditions, or mast cell issues, excluding wheat, gluten, eggs, peanuts, and artificial additives matters significantly. For buyers without those concerns, hypoallergenic specification does not translate into a functional benefit, it is a defensive formulation choice, not a performance upgrade.
How much magnesium glycinate should I take per day?
Clinical research supports 200-400mg of elemental magnesium per day for sleep, muscle cramps, and blood pressure support. Both Thorne and Pure Encapsulations are dosed so that two to four capsules reach this range. Glycinate form is much better tolerated than oxide or citrate, which cause GI effects at lower doses.
Are Thorne and Pure Encapsulations third-party tested?
Yes. Both conduct extensive in-house testing and publish certificates of analysis. Thorne carries NSF Certified for Sport status on many products in its lineup. Pure Encapsulations' manufacturing facilities carry third-party GMP certification and products are tested for identity, potency, and contaminants.
More Magnesium Glycinate Comparisons
We earn commissions on purchases made through our links. This never influences our scores or recommendations. See our editorial policy.
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products discussed on this page are not intended to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare professional before starting any supplement regimen.