Brain health supplement that supports memory and cognitive function by delivering magnesium to the brain.
Powered by Magtein, a patented magnesium form designed to raise brain magnesium levels, it supports synaptic connections that aid memory and learning.

Doctor's Best is recognised for science-led formulations and strict quality standards, with vegan, non GMO, gluten free and soy free ingredients.

Available Sizes & Variants:

90 vcaps brain magnesium with Magtein – convenient daily dosage for cognitive support.

Benefits & Features:

• Supports daily focus and memory.
• The key active ingredient Magtein crosses the blood brain barrier more efficiently, helping maintain synaptic connections and supporting memory, learning, and overall mental clarity during demanding tasks.
• Sugar and dairy free, making it simple to fit into daily routines.
• Designed for everyday use, with a straightforward three capsule serving for balanced magnesium.
• Morning and evening dosing lines up with brain magnesium needs for steady focus.

Doctor's Best has a history of science based formulations and ingredient transparency. The brain magnesium with Magtein uses a patented form designed to cross into the brain, boosting magnesium levels where memory and learning happen. The brand's GMP compliant facilities and vegan, non-GMO, gluten free design back every bottle. In studies, Magtein is shown to support cognitive performance and memory retention by enhancing synaptic plasticity, with benefits often noticeable after a few weeks. Not a vitamin d supplement, this product focuses on brain magnesium and can be paired with creatine to support broader wellness goals, with customers exploring magnesium glycinate.

Magnesium L-Threonate (from Magtein), Calcium Laurate, Hypromellose (vegetarian capsule), Rice Flour.

• GTIN: 753950002838
• Manufacturer: Doctor's Best
• Categories: Best SellersBlood Pressure SupplementsDoctor’s Best Supplements & VitaminsMagnesium Supplements, Tablets & VitaminsMinerals SupplementsNootropics SupplementsPeriod Pain Tablets & ReliefStress Relief & Calming SupplementsSubscribe & Save Products
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take 1 capsule in the morning and 2 capsules two hours before bedtime, or as directed by your healthcare professional. Store in a cool, dry place. Consult your doctor if you are taking prescription medications with Magtein. Not recommended for pregnant or breastfeeding women. Dietary supplements are not a substitute for a balanced diet and healthy lifestyle. Do not exceed the recommended dosage. Keep out of reach of children.

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: Magnesium L-Threonate (Magtein)

Magnesium L-threonate is a magnesium form designed to support brain health and cognitive function, providing magnesium in a structure that effectively reaches brain tissue. This patented Magtein formulation is used to enhance delivery of magnesium to the brain.

As a brain-targeted magnesium source, it is distinguished from other magnesium forms by its potentially greater brain availability and its role in supporting synaptic connections relevant to learning and memory.

What Does Magnesium L-Threonate Do?

Magnesium contributes to normal nervous system function and supports healthy cognitive function in line with EFSA guidance. It is described as crossing the blood-brain barrier to elevate brain magnesium levels, which relates to synaptic activity underlying memory processes.

In this context, the formulation also emphasises the role of Magnesium L-Threonate in maintaining neuronal connectivity and learning-related brain activity.

This product is not intended to diagnose, treat, cure, or prevent any disease.

Doctor's Best is Welzo selected for its uncompromising manufacturing standards and science-led approach. This brand operates in GMP certified facilities, underscoring a robust commitment to safety and quality control that aligns with our strict compliance expectations. This foundational reliability is complemented by Doctor's Best strong emphasis on ingredient transparency and evidence-based formulation, making them a trusted partner in our cognitive health category. The inclusion of Magtein® as a patented, brain-optimised ingredient further differentiates the brand, demonstrating a specialised focus on delivering quality to consumers. This alignment with rigorous quality practices is a core reason we chose Doctor's Best for this product, and we evaluate these elements through our ongoing internal checks, including how we verify ingredient quality.

In the UK market, Doctor's Best has established a reputation for dependable, science-driven supplements and broad distribution, which supports reliable access for Welzo customers. Our partnership with the brand is underpinned by a shared commitment to safety, purity, and regulatory compliance, with a product design that suits brain health but remains within the scope of established research practices. This brand fit complements our expert vetting process and is reinforced by our medical team’s review and ongoing oversight: our medical team and a clear framework for ingredient quality and certifications: how we verify ingredient quality.