These are the top 10 magnesium l threonate right now, ordered by how many verified reviews each has earned, 87,224 in total across the list.
How we rank it: We rank Magtein®, 90 Veg Capsules #1 for its strong balance of quality and price, which makes it our overall best magnesium l threonate pick.
How we rank it: We placed Magtein®, Magnesium L-Threonate, 180 Veg Capsules (48 mg per Capsule) at #2 thanks to its strong balance of quality and price.
How we rank it: Neuro-Mag®, Magnesium L-Threonate, Tropical Punch, 3.293 oz (93.35 g) lands at #3 largely for Life Extension's reputation for quality.
How we rank it: We placed Magtein®, Magnesium L-Threonate, 180 Capsules at #4 thanks to its strong balance of quality and price.
How we rank it: Magtein®, Magnesium L-Threonate, 90 Capsules lands at #5 largely for Source Naturals's reputation for quality.
How we rank it: Think, Magnesium L-Threonate, 60 Tablets (72 mg per Tablet) lands at #6 largely for KAL's reputation for quality.
How we rank it: Magnesium Advanced, 270 Capsules lands at #7 largely for Dr. Mercola's reputation for quality.
How we rank it: MagMind®, Brain Health, 90 Veggie Capsules (48 mg per Capsule) lands at #8 largely for Jarrow Formulas's reputation for quality.
How we rank it: At #9, Magtein®, Magnesium L-Threonate, 90 Veggie Capsules (666 mg per Capsule) earns its spot for how consistently shoppers reach for it.
How we rank it: We placed Magtein®, Magnesium L-Threonate, 180 Veggie Capsules (666 mg per Capsule) at #10 thanks to its strong balance of quality and price.
| # | Product | Brand | Score | Rating | Reviews | Price | |
|---|---|---|---|---|---|---|---|
| 1 | Magtein®, 90 Veg Capsules | NOW Foods | 9.7 | 4.8 | 20,809 | $35.07 | View → |
| 2 | Magtein®, Magnesium L-Threonate, 180 Veg Capsules (48 mg per Capsule) | NOW Foods | 9.7 | 4.8 | 20,809 | $67.36 | View → |
| 3 | Neuro-Mag®, Magnesium L-Threonate, Tropical Punch, 3.293 oz (93.35 g) | Life Extension | 9.7 | 4.8 | 17,991 | $31.50 | View → |
| 4 | Magtein®, Magnesium L-Threonate, 180 Capsules | Source Naturals | 9.5 | 4.7 | 5,689 | $60.19 | View → |
| 5 | Magtein®, Magnesium L-Threonate, 90 Capsules | Source Naturals | 9.5 | 4.7 | 5,688 | $30.79 | View → |
| 6 | Think, Magnesium L-Threonate, 60 Tablets (72 mg per Tablet) | KAL | 9.7 | 4.8 | 5,527 | $37.49 | View → |
| 7 | Magnesium Advanced, 270 Capsules | Dr. Mercola | 9.7 | 4.8 | 5,019 | $95.70 | View → |
| 8 | MagMind®, Brain Health, 90 Veggie Capsules (48 mg per Capsule) | Jarrow Formulas | 9.7 | 4.8 | 3,428 | $36.74 | View → |
| 9 | Magtein®, Magnesium L-Threonate, 90 Veggie Capsules (666 mg per Capsule) | Sports Research | 9.5 | 4.7 | 1,132 | $29.95 | View → |
| 10 | Magtein®, Magnesium L-Threonate, 180 Veggie Capsules (666 mg per Capsule) | Sports Research | 9.5 | 4.7 | 1,132 | $59.97 | View → |
Our editorial team evaluates every product on the factors that matter most to shoppers, not just price.
We rank by verified customer reviews and rating. For added assurance, we recommend choosing products that carry independent third-party testing or certification. These organisations publish public standards and verified-product listings:
This guide is for general information only and is not medical advice. Consult a qualified professional before starting any supplement.
Magtein®, 90 Veg Capsules leads with 20,809 verified reviews, followed by Magtein®, Magnesium L-Threonate, 180 Veg Capsules (48 mg per Capsule) with 20,809.
Magtein®, Magnesium L-Threonate, 90 Veggie Capsules (666 mg per Capsule) is the lowest-priced pick at $29.95, with a 4.7/5 rating from 1,132 reviews.
We rank magnesium l threonate primarily by their number of verified customer reviews, a strong signal of real-world popularity, and factor in average rating. We never accept payment for placement.
This guide compares 10 of the most-reviewed magnesium l threonate available, ranked from most to least reviewed.
The products in this comparison were in stock at our last update (2026-09-19). Availability can change, so check the product page for current status.