Unlike most magnesium supplements, Magtein (magnesium L-threonate) is clinically proven to cross the blood-brain barrier. Paired with Quicksilver’s advanced liposomal delivery, it delivers superior absorption, targeted cognitive support and fast-acting benefits. We’ve supercharged brain function by adding 450 mg of high-purity phosphatidylcholine (PC) per serving—a vital phospholipid for neuronal membrane support and healthy neurotransmission. The powerful combination of Magtein + PC helps fuel cognition and neuroplasticity supporting long-term brain health. Elevate your mental game with Magtein + phospholipids delivered in a liposome—an unmatched formulation for brain performance and mental well-being.

Liposomal Magtein combines Quicksilver’s unparalleled liposomal delivery technology with brain-centric magnesium L-threonate (Magtein) and high-purity phosphatidylcholine (PC)—a well-known phospholipid that supports neuronal membranes and healthy neurotransmission.

Why Magtein® (magnesium L-threonate)? 

• Scientifically Proven Ingredient – Developed from MIT research

• It Reaches Your Brain – Crosses the blood-brain barrier for maximum impact

• Helps Boost Memory, Focus & Learning – Enhances neural plasticity

• Helps Calm Stress & Supports Deep Sleep – Modulates neurotransmitters for balance

• Smarter Absorption On Overdrive – Magtein + Liposomal delivery ensures superior uptake and results

NET WT. 15.2 FL OZ (450mL)