Our Science
The Science Behind Aursen Magnesium Glycinate
Every decision behind Aursen Magnesium Glycinate — the form of magnesium used, the dose chosen, the capsule shell selected, the facility we manufacture in — is grounded in peer-reviewed science and clinical evidence. This page explains the research that supports our formulation.
Why Magnesium Matters
Magnesium is one of the most important minerals in the human body. It is a cofactor in over 300 enzymatic reactions — processes that govern everything from energy production (ATP synthesis) and protein synthesis to DNA repair, muscle contraction, and neurotransmitter regulation.
Despite its fundamental importance, the USDA estimates that approximately 48% of Americans consume less than the recommended daily amount of magnesium. Soil depletion from modern farming practices, increased consumption of processed foods, and higher rates of chronic stress (which depletes magnesium more rapidly) have all contributed to widespread magnesium insufficiency.
The consequences are wide-ranging: disrupted sleep, increased anxiety, muscle cramps, low energy, impaired cognitive function, and poor exercise recovery are among the most commonly reported symptoms of suboptimal magnesium levels.
Why Form Matters: Glycinate vs Other Magnesium Forms
Not all magnesium supplements are created equal. The bioavailability — the percentage of the mineral that is actually absorbed and used by the body — varies enormously between different forms.
| Form | Bioavailability | Digestive Tolerance | Best For |
|---|---|---|---|
| Magnesium Glycinate | High (up to 80%+) | Excellent — very gentle | Sleep, anxiety, recovery, daily use |
| Magnesium Malate | Moderate–High | Good | Energy, muscle pain |
| Magnesium Citrate | Moderate | Can cause loose stools | Constipation, general use |
| Magnesium L-Threonate | Moderate (brain-targeted) | Good | Cognitive function |
| Magnesium Oxide | Very low (<4%) | Often causes GI distress | Antacid, laxative only |
| Magnesium Sulfate | Low when oral | Strong laxative effect | Epsom salt baths, IV use |
Magnesium glycinate is chelated — the magnesium mineral is chemically bound to two molecules of the amino acid glycine. This chelation creates a stable compound that is absorbed through the peptide transport system in the small intestine, a pathway that bypasses the rate-limiting transport mechanisms that restrict ionic mineral absorption.
The result is dramatically higher bioavailability compared to non-chelated forms, and virtually zero digestive side effects — making it suitable for daily long-term use even at therapeutic doses.
The Role of Glycine
The amino acid glycine — which comprises half of the magnesium glycinate molecule — is not merely a delivery vehicle. Glycine itself is a neurotransmitter with documented effects on sleep quality and nervous system function.
Research published in Sleep and Biological Rhythms demonstrated that glycine supplementation before bed significantly improved subjective sleep quality, reduced daytime sleepiness, and shortened the time required to reach deep (slow-wave) sleep. Glycine works by lowering core body temperature — a process essential for sleep onset — and by modulating NMDA receptors in the brain.
By choosing magnesium glycinate over other chelated forms, Aursen delivers the benefits of both magnesium and glycine in a single capsule — a genuine synergy rather than a marketing claim.
Mechanisms of Action
Sleep Support
Magnesium regulates the activity of GABA (gamma-aminobutyric acid) receptors — the primary inhibitory neurotransmitter system in the brain. By enhancing GABAergic signalling, magnesium promotes the neurological transition from wakefulness to sleep. It also regulates melatonin synthesis and modulates the hypothalamic-pituitary-adrenal (HPA) axis to reduce nighttime cortisol levels, which are a primary driver of difficulty falling and staying asleep.
Muscle Function & Recovery
Magnesium and calcium work in physiological opposition within muscle cells. Calcium ions trigger muscle contraction by binding to troponin; magnesium enables relaxation by competing with calcium for binding sites and by powering the calcium pumps that remove calcium from the cytoplasm post-contraction. Insufficient magnesium impairs this relaxation process, resulting in sustained muscle tension, cramping, and slower recovery. Adequate magnesium also reduces exercise-induced oxidative stress and lactic acid accumulation.
Stress & Anxiety Regulation
Magnesium is a natural physiological antagonist of the NMDA (N-methyl-D-aspartate) receptor — the primary excitatory receptor in the central nervous system. Under conditions of stress, excessive NMDA activation leads to neuronal hyperexcitability, anxiety, and hypervigilance. Magnesium blocks NMDA receptors in a voltage-dependent manner, dampening this excitatory cascade. It also suppresses the release of cortisol and adrenaline from the adrenal glands, providing a direct anti-stress effect at the hormonal level.
Energy Production
ATP — adenosine triphosphate — is the universal energy currency of every living cell. For ATP to be biologically active, it must be complexed with magnesium (forming Mg-ATP). Magnesium is therefore an essential cofactor for every ATP-dependent enzymatic reaction in the body, including the primary energy-producing pathways in mitochondria (glycolysis, the citric acid cycle, and oxidative phosphorylation). Without adequate magnesium, cellular energy production is directly impaired — manifesting as fatigue, brain fog, and reduced physical performance.
Our Dosage Rationale
Each serving of Aursen Magnesium Glycinate provides 275mg of elemental magnesium — equivalent to 66% of the US Reference Daily Intake (RDI) of 420mg for adult males and 320mg for adult females.
This dose was chosen deliberately. The RDI represents the minimum intake needed to prevent deficiency in a healthy population — it is not an optimal supplementation dose for individuals with higher needs or existing insufficiency. Clinical studies supporting the sleep, anxiety, and muscle-recovery benefits of magnesium glycinate have generally used doses in the range of 200–400mg of elemental magnesium. Our 275mg dose sits comfortably within this evidenced therapeutic range while remaining well below the tolerable upper intake level of 350mg for supplemental magnesium set by the National Institutes of Health.
Certifications
* 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.
