Magnesium is required for over 300 enzymatic reactions in the body — but not all forms of magnesium reach the brain. Most common magnesium supplements (citrate, glycinate, oxide) are well-absorbed into muscle and tissue but cross the blood-brain barrier poorly. Magnesium L-Threonate is different.
Developed by a team of scientists at MIT, Magtein® — the patented form of Magnesium L-Threonate used in this formula — was specifically engineered to elevate magnesium levels in the brain. Research has shown it can increase brain magnesium concentrations more effectively than any other magnesium compound, supporting synaptic plasticity, the neural mechanism underlying learning and memory.
Cymbiotika delivers 1,300mg of Magtein® per serving in a liposomal liquid format, encapsulated for superior absorption and paired with Phosphatidylcholine and Vitamin E for stability. The formula comes in convenient single-serve sachets — vanilla almond flavour — designed for daily use, at home or on the go.

Magtein® (Magnesium L-Threonate) is the defining ingredient here, and the distinction from other magnesium supplements matters:
Crosses the blood-brain barrier: Magnesium L-Threonate is the only magnesium compound that reliably crosses the blood-brain barrier in meaningful quantities. This is what makes it a cognitive performance ingredient rather than just a general health supplement.
Supports synaptic plasticity: Magnesium plays a direct role in NMDA receptor function — the glutamate receptors involved in long-term potentiation, the process by which memories are formed and consolidated. Higher brain magnesium levels are associated with improved learning speed and memory retention.
Mood and stress regulation: Magnesium modulates the GABA system and cortisol response. Brain-level magnesium sufficiency is associated with reduced anxiety, improved mood stability, and a calmer central nervous system — making this relevant not just for cognitive performance but for emotional resilience.
Liposomal delivery: The liposomal format protects the active compound from digestive breakdown and improves cellular uptake compared to standard powder or capsule formats.
Cymbiotika recommends pairing this product with Golden Mind for comprehensive cognitive support — a combination that stacks brain-level magnesium with adaptogenic nootropics for a full-spectrum mental performance protocol.

Squeeze the entire contents of one sachet directly into the mouth or stir into a favourite beverage. Take one sachet daily.
Can be taken at any time of day. Some users prefer morning for the focus and clarity benefits; others take it in the evening for its nervous system calming effects. Store in a cool, dry place away from direct sunlight. Do not freeze.

• Those wanting to support memory, focus, and cognitive clarity with a brain-targeted magnesium
• People experiencing brain fog, mental fatigue, or difficulty concentrating
• Those interested in supporting long-term cognitive health and protecting against age-related cognitive decline
• Anyone who is magnesium deficient — estimated to affect the majority of adults — and wants to address it with a cognitively targeted form
  
• Works well alongside Golden Mind as a daytime cognitive stack

Contains almonds. Not suitable for those with tree nut allergies. Consult a healthcare professional if pregnant, nursing, or taking medications.

• Magtein® — the only form of magnesium clinically shown to cross the blood-brain barrier
• Supports memory, learning, focus, and synaptic plasticity
• Supports mood balance and stress regulation via the GABA system
• 1,300mg per serving — the research-supported dose
• Liposomal delivery for superior absorption
• Convenient single-serve sachets — vanilla almond flavour
  
• Developed from MIT research