Momentous - Magtein Sleep and Cognitive

Momentous Magnesium L-Threonate delivers 2g of Magtein® magnesium L-threonate per serving — a clinically studied form of magnesium specifically designed to cross the blood-brain barrier and support cognitive performance, sleep quality, relaxation, and recovery. NSF Certified for Sport®, vegan, gluten-free, and formulated to the rigorous purity standards trusted by elite athletes and high performers.

For individuals looking to support deeper recovery, mental clarity, restorative sleep, and long-term brain health with a highly specialized form of magnesium designed for the central nervous system.

Magtein® — Brain-Targeted Magnesium Support
Not all forms of magnesium function the same way in the body. While many magnesium supplements primarily support digestion, muscular function, or general magnesium intake, Magtein® magnesium L-threonate was specifically developed to increase magnesium levels within the brain.

Research suggests magnesium L-threonate is uniquely capable of crossing the blood-brain barrier more effectively than traditional magnesium forms, helping support cognitive performance, neural signaling, and sleep-related recovery processes.

Momentous uses branded Magtein® magnesium L-threonate exclusively, delivering a clinically studied dose designed to support both mental and physical recovery.

As one verified customer shared:

“For doing demanding physical and mental work, the depth of recovery makes an impact.”

What Magnesium L-Threonate Does

Cognitive Function, Memory & Focus
Magnesium plays a central role in neuronal signaling, synaptic plasticity, and communication within the brain. Research on magnesium L-threonate suggests it may support working memory, learning capacity, focus, and overall cognitive performance by helping maintain healthy magnesium concentrations in neural tissue.

This makes it particularly valuable for individuals under high cognitive load, stress, or demanding work and training schedules.

Restorative Sleep & Recovery
Magnesium helps regulate the nervous system and supports relaxation pathways involved in sleep onset and recovery quality. Magnesium L-threonate is commonly used to support deeper, more restorative sleep without relying on sedative compounds.

Quality sleep directly impacts physical recovery, cognitive performance, mood regulation, and overall resilience.

Stress Management & Nervous System Support
Magnesium is involved in hundreds of enzymatic reactions throughout the body and plays a critical role in regulating the stress response and nervous system balance.

Supporting adequate magnesium levels may help promote calmness, relaxation, and improved recovery from both physical and mental stressors.

Supplement Facts
Serving Size: 3 Capsules | Servings Per Container: 30

Magnesium — 145mg (35% Daily Value)
(from 2g Magtein® Magnesium L-Threonate)

Other Ingredients:
Rice Flour, Hypromellose, Magnesium Stearate, Silica

NSF Certified for Sport®
Gluten-Free, GMO-Free, Vegan

How to Use
Take 3 capsules daily, preferably in the evening or before bed

Can be taken with or without food

Consistent daily use is recommended for best results, as magnesium status and neurological benefits build over time

Some individuals prefer splitting the serving between afternoon and evening to support relaxation and sleep quality

Who May Benefit Most?
Individuals seeking deeper recovery and improved sleep quality

Athletes balancing high physical and cognitive demands

Professionals, students, and high performers under elevated stress

Those looking to support focus, memory, and cognitive performance

Individuals with low dietary magnesium intake

Warnings
Consult a healthcare provider before use if you have a medical condition, are pregnant or nursing, or take prescription medication. Keep out of reach of children.

Do not exceed recommended serving size unless directed by a healthcare professional.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Stack With
Momentous Creatine Monohydrate — Supports muscular ATP production and physical performance while magnesium L-threonate supports neurological recovery and cognitive resilience.

Momentous Omega-3 — Combines brain health, cognitive support, and recovery-focused nutritional support.

Momentous Zinc — Supports nervous system function, recovery, and hormonal balance alongside magnesium’s role in relaxation and sleep quality.