Absorption Booster
Vitamin B6
Vitamin B6 supports cellular magnesium transport and retention.
No matching catalogue product yet.
What it is
Cognition and brain magnesium
Who it suits
Working memory and executive function, Synaptic density support, Age-related cognitive maintenance
Best price today
$37.61 at iHerb (US)
Verified clinical advantages
- Magtein L-threonate with published CSF penetration data
- Third-party heavy metal assay per lot
- No artificial sweeteners or colours
Trade-offs & compromises
- Only 144 mg elemental per 3-capsule serving
- Very high cost per 100 mg elemental
- Contains silicon dioxide and vegetable stearate
Multi-store price comparison
| Merchant | Base price | Shipping | Delivery | Stock | |
|---|---|---|---|---|---|
| iHerbUS | $37.61 | $7.07 | 5-8 business days | In stock | View on iHerb |
| Amazon.deDE | $43.37 | Free | 1-2 business days | In stock | View on Amazon.de |
Prices last synced: 14 Sept 2026, 00:47 UTC. Prices and availability are subject to change.
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Biochemical facts panel
Gross compound
2000 mg
Elemental active
144 mg
% Daily value
34%
Bioavailability
High
Magnesium bound to L-threonic acid, a vitamin C metabolite. The threonate carrier facilitates transport across the blood-brain barrier, raising cerebrospinal fluid magnesium in rodent models where conventional salts do not — at the cost of a very low elemental payload per gram of compound.
Target benefits
- Working memory and executive function
- Synaptic density support
- Age-related cognitive maintenance
GI tolerance & side effects
- Vivid dreams
- Headache at initiation
- Low elemental yield requires 3 capsules
Renal & other contraindications
- Severe renal impairment
- Pregnancy (insufficient data)
Upper tolerable intake: 350 mg/day elemental from supplemental sources
Full excipient & inactive additive disclosure
Vegetable cellulose (capsule)Silicon dioxideVegetable stearate
Similar alternatives
Same category, different carrier economics.
Doctor's Best
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NOW Foods
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Approximate conversion — the retailer charges in EUR.
Prices last synced: 14 Sept 2026, 00:47 UTC. Prices and availability are subject to change.
Pure Encapsulations
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Prices last synced: 14 Sept 2026, 00:47 UTC. Prices and availability are subject to change.
Seeking Health
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Approximate conversion — the retailer charges in EUR.
Prices last synced: 11 Sept 2026, 14:56 UTC. Prices and availability are subject to change.