Posted by Rachel Cunard
on April 30, 2026
If you've ever flipped over a sleep supplement and stared blankly at a list of unpronounceable ingredients, you're not alone. The supplement industry can feel overwhelming, especially when your sleep is at stake. So let's break it all down in plain English. Here's exactly what goes into a high-quality natural sleep supplement, what each ingredient does, and why it matters for your rest.
Why Ingredient Transparency Matters
Not all sleep supplements are created equal. Some are packed with fillers, synthetic additives, or dangerously high doses of single ingredients like B6 or melatonin. Understanding what's in your supplement helps you make informed choices and know exactly what you're putting into your body each night.
At LifeLab&Co, we believe you should know exactly what's in every scoop of your SleepSHAKE. So here's your no-jargon guide.
The Key Natural Sleep Ingredients (And What They Actually Do)
1. Magnesium
Magnesium is one of the most important minerals for sleep and most Australians don't get enough of it from food alone. It plays a direct role in regulating the nervous system and calming neural activity, which is essential for switching off at night.
What it does for sleep: Magnesium activates the parasympathetic nervous system (your "rest and digest" mode), helps regulate melatonin production, and reduces cortisol; the stress hormone that keeps you wired.
2. Ashwagandha
Ashwagandha is an adaptogenic herb used in Ayurvedic medicine for thousands of years. It's one of the most researched natural stress-relief ingredients available today.
What it does for sleep: Lowers cortisol levels, reduces stress and anxiety, and has been shown in clinical trials to significantly improve sleep quality and duration.
3. Glycine
Glycine is an amino acid that acts as an inhibitory neurotransmitter in the brain, meaning it slows things down...in a good way. It also plays a role in regulating your body temperature, which is critical for falling asleep.
What it does for sleep: Lowers core body temperature, reduces time to fall asleep, increases deep (slow-wave) sleep, and improves next-day energy and focus.
4. Reishi Mushroom (Ganoderma lucidum)
Reishi has been used in traditional Chinese and Japanese medicine for centuries. It's known historically as the 'mushroom of immortality' for its wide-ranging health effects. Modern science is catching up, with research exploring how its active compounds (triterpenes and polysaccharides) interact with the nervous system and gut to support sleep.
What it does for sleep: Preclinical studies show Reishi can shorten sleep latency and prolong sleep duration, with a 2021 study in Scientific Reports identifying a gut microbiota-serotonin pathway as a key mechanism. Human clinical evidence is still developing, but early research and traditional use point toward benefits for restlessness, stress, and sleep quality, particularly for those whose poor sleep is rooted in stress or fatigue.
5. Chamomile (with Apigenin)
Chamomile is one of the world's most widely consumed herbal teas, used for generations as a gentle sleep and relaxation aid. Its key active compound is apigenin — a flavonoid that gives chamomile much of its calming power.
What it does for sleep: Apigenin binds to GABA-A receptors in the brain — the same receptors targeted by benzodiazepine medications, but as a gentle partial agonist rather than a full agonist, meaning no dependency or tolerance risk. Clinical trials using standardised chamomile extract have shown improvements in sleep quality and anxiety, particularly in older adults and those under stress. Dietary apigenin intake has also been shown to positively correlate with sleep quality in large adult cohorts.
What to Avoid in a Sleep Supplement
Just as important as what's in your supplement is what's NOT in it. Watch out for:
- Synthetic melatonin in high doses: can disrupt your natural hormone cycle with long-term use
- Artificial colours, sweeteners, and fillers: no nutritional benefit and potential sensitivities
- Undisclosed 'proprietary blends': you can't verify individual ingredient doses
- Alcohol-based tinctures: not suitable for everyone and can disrupt sleep architecture
How to Read a Supplement Label
When assessing any sleep supplement, look for these things on the label:
- Each ingredient listed individually with its exact dose
- Evidence-based ingredients with clinical backing
- TGA (Therapeutic Goods Administration) listed products if you're in Australia
- No artificial preservatives or synthetic binders
The Bottom Line
A great natural sleep supplement should be transparent, clinically formulated, and built around ingredients with real research behind them. SleepSHAKE by LifeLab&Co. is clinically formulated with a unique combination of evidence-based natural ingredients designed to enhance deep sleep, calm the mind, and support your nervous system, without the next-day grogginess.
Now that you know what to look for, you can sleep easier knowing exactly what's in your nightly ritual!
Frequently Asked Questions
Q: Are natural sleep supplements safe?
A: Yes, when formulated with evidence-based ingredients at appropriate doses. Always check with your doctor if you're on medication or have a health condition.
Q: Do I need to take a sleep supplement every night?
A: It depends on the supplement and your sleep needs. Natural sleep supplements are generally safe for nightly use, but it's always wise to take breaks periodically and consult a healthcare professional.
Q: How long does it take for sleep supplement ingredients to work?
A: Some ingredients like Magnesium and Glycine can have an effect within the first night. Adaptogens like Ashwagandha typically take 2–4 weeks of consistent use to show maximum benefit.
Q: Are Australian sleep supplements different from overseas ones?
A: Australian supplements must meet TGA standards, which are among the strictest in the world. This means you can have higher confidence in ingredient quality and labelling accuracy.
