Four of the Most Researched Sleep Nutrients — In One Nightly Powder

Quality sleep is not a luxury — it is the foundation of every system in the body. Yet for millions of Australians, falling asleep, staying asleep, or waking genuinely restored remains elusive. MagSleep by Give Back Health Clinic Collection addresses the most common nutritional drivers of poor sleep in a single, elegantly formulated powder: combining magnesium citrate, L-glycine, L-theanine, and plant-derived melatonin (Sleepatonin®/Herbatonin®) in clinically meaningful doses.

This is not a sedative. It is a comprehensive nutritional foundation for the sleep your body was designed to have.The Formula — What's In It & Why

Magnesium Citrate — 350 mg

Magnesium is involved in over 300 enzymatic reactions in the body, and its role in sleep is both direct and profound. Magnesium deficiency — which is widespread in the modern population due to soil depletion and dietary patterns — is strongly associated with insomnia, restless sleep, night-time muscle cramps, and heightened stress reactivity.

• GABA receptor activation: Magnesium is a required cofactor for GABA receptor function. GABA is the brain's primary inhibitory neurotransmitter — the neurochemical signal that quiets neural activity and allows the transition into sleep. Without adequate magnesium, GABA receptors are less responsive, and the nervous system struggles to downregulate.
• NMDA receptor antagonism: Magnesium blocks NMDA glutamate receptors, reducing excitatory neural activity that can keep the mind racing at night.
• Cortisol regulation: Magnesium helps regulate the HPA axis and attenuate cortisol output — particularly important for those whose sleep is disrupted by stress-driven hyperarousal.
• Muscle relaxation: Magnesium is essential for the calcium-magnesium balance that governs muscle contraction and relaxation — directly addressing night-time muscle tension, cramps, and restless legs.

Magnesium citrate is one of the most bioavailable forms of magnesium, offering superior absorption compared to magnesium oxide — the cheap, poorly absorbed form found in many lower-quality supplements.

L-Glycine — 3 g

Glycine is a simple amino acid with a surprisingly powerful role in sleep physiology. At 3 grams — the dose used in the key clinical trials — glycine has been shown to:

• Reduce core body temperature: Glycine promotes peripheral vasodilation, increasing blood flow to the extremities and facilitating the drop in core body temperature that is a prerequisite for sleep onset. This is the same mechanism by which a warm bath before bed promotes sleep — glycine achieves it from within.
• Improve subjective sleep quality: Double-blind, placebo-controlled trials demonstrate that 3 g of glycine before bed significantly improves self-reported sleep quality, reduces daytime sleepiness, and improves cognitive performance the following day — even without increasing total sleep time.
• Modulate NMDA receptors in the brainstem: Glycine acts as a co-agonist at NMDA receptors in the brainstem regions involved in REM sleep regulation, supporting healthy sleep architecture and the restorative deep sleep stages.

L-Theanine — 200 mg

L-Theanine, the calming amino acid from green tea, is included at 200 mg — the dose consistently shown in clinical research to promote alpha brainwave activity, reduce anxiety, and support relaxation without sedation.

• Promotes alpha brainwaves — the neural signature of calm, relaxed alertness that facilitates the transition into sleep
• Enhances GABA production, complementing magnesium's GABAergic effects
• Reduces cortisol and attenuates the physiological stress response
• Supports sleep quality without next-day grogginess or dependency

The combination of L-theanine with magnesium creates a synergistic GABAergic effect — both compounds supporting the inhibitory neurotransmitter pathways that are essential for sleep onset and maintenance.

Sleepatonin®/Herbatonin® (Alfalfa Leaf Extract) — 50 mg

Rather than synthetic melatonin, MagSleep uses Sleepatonin®/Herbatonin® — a patented, standardised extract of Medicago sativa (alfalfa) leaf that provides naturally occurring, plant-derived melatonin. This is a meaningful distinction:

• Physiological dosing: Plant-derived melatonin from Herbatonin® delivers melatonin in doses that more closely mirror the body's own nocturnal melatonin output — avoiding the supraphysiological doses of synthetic melatonin that can suppress the body's own melatonin production with prolonged use.
• Circadian rhythm support: Melatonin signals the brain that it is time to sleep, helping to synchronise the circadian clock — particularly valuable for shift workers, frequent travellers, and those with delayed sleep phase.
• Antioxidant activity: Melatonin is a potent antioxidant that protects neural tissue during sleep — the period when the brain's glymphatic system is most active in clearing metabolic waste.
• Natural matrix: The plant-derived format provides melatonin within its natural phytochemical context, which may support gentler, more sustained activity compared to isolated synthetic melatonin.

Who May Benefit Most

• Difficulty falling asleep — driven by a racing mind, stress, or cortisol dysregulation
• Frequent night waking — particularly in the early hours when cortisol begins to rise
• Unrefreshing sleep — waking tired despite adequate hours in bed
• Night-time muscle cramps or restless legs — classic signs of magnesium insufficiency
• Stress-driven sleep disruption — where the nervous system struggles to downregulate at night
• Shift workers & frequent travellers — needing circadian rhythm support
• Those avoiding synthetic melatonin — seeking a more physiological, plant-derived alternative

Dietary Attributes

MagSleep is dairy-free, fructose-free, gluten-free, keto-friendly, lactose-free, peanut-free, soy-free, vegan, and vegetarian-friendly.

Key Features at a Glance

• ✦ Magnesium citrate 350 mg — highly bioavailable, GABA & muscle support
• ✦ L-Glycine 3 g — clinically trialled dose for sleep quality & core temperature regulation
• ✦ L-Theanine 200 mg — alpha brainwave & GABAergic calm
• ✦ Sleepatonin®/Herbatonin® — plant-derived melatonin for circadian rhythm support
• ✦ Synergistic formula targeting multiple sleep pathways simultaneously
• ✦ Powder format — rapid absorption, practical high-dose glycine delivery
• ✦ Dairy-free, gluten-free, vegan & vegetarian
• ✦ 170 g — approximately 30 serves
• ✦ Give Back Health Clinic Collection — practitioner-developed formulation

This product is intended to support general wellbeing. It is not intended to diagnose, treat, cure, or prevent any disease. Always consult your healthcare practitioner before commencing any new supplement, particularly if you have an existing health condition or are taking medication.