in 3 offers
The lowest price for Swanson Magnesium L-Threonate right now is $66.01 at iHerb, compared across 3 retailers.
The all-time low was $54.55 on 4 June 2026 — today's price is 21% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 13 Oct 2026.
Swanson Magnesium L-Threonate
Last updated at 13/10/2026 11:06:30
Swanson Vitamins, Magtein Magnesium L-Threonate, 90 Vegan Capsules
Delivery $40
Swanson Magtein Magnesium L-Threonate Supplement, 90 Vegan Capsules
Delivery $39.36
Swanson Magnesium L-Threonate 90 Veg Capsules
Free delivery
| Form | Capsule |
| Supplement Type | Magnesium Supplement, Dietary supplement, Magnesium Supplements, Mineral Supplement |
| Benefit | Promote optimum levels within the brain |
| Body Part Use | Brain |
| Container Type | Bottle |
Swanson Vitamins, Magtein Magnesium L-Threonate, 90 Vegan Capsules
Delivery $40
Swanson Magtein Magnesium L-Threonate Supplement, 90 Vegan Capsules
Delivery $39.36
Swanson Magnesium L-Threonate 90 Veg Capsules
Free delivery
| Form | Capsule |
| Supplement Type | Magnesium Supplement, Dietary supplement, Magnesium Supplements, Mineral Supplement |
| Benefit | Promote optimum levels within the brain |
| Body Part Use | Brain |
| Container Type | Bottle |
