In study phases, the nervous system, energy and sleep count: magnesium supports psychological function and reduces tiredness, melatonin reduces the time taken to fall asleep, Lions Mane is a traditional focus companion. The basis always remains study structure, sufficient sleep and regular meals. Pulling all-nighters costs more memory performance in the end than it brings in.
Exam phases are a state of emergency: long study sessions, little sleep, irregular meals and a mind that does not want to switch off in the evening. Between the library, a side job and deadlines, your supply quickly falls by the wayside, and it is precisely then that you need concentration and energy most urgently. Supplements are no substitute for a good study strategy, but can support individual areas while the actual success arises through structure, sleep and repetition. This guide shows you what matters in study phases, which nutrients are relevant around the nervous system and sleep and which products from our range fit student everyday life and a tight budget well.
An honest classification up front: there is no pill that conjures study material into the brain or rescues poor preparation. Anyone who promises that is selling illusions. What well-supplied nutrients and restful sleep can achieve is the basis for your mind to be able to work in a concentrated way and to retain what has been learned at all. In this sense, we regard supplements as a small, affordable building block alongside the real levers – structure, repetition and sleep. That is exactly how you should read the following recommendations too.
What matters for the goal of students & study phases
In focus are concentration, the nervous system, energy and restful sleep – all described in terms of the authorised EU statements, because serious advice promises no miracles but describes recognised functions.
Magnesium is particularly relevant in stressful study phases: magnesium contributes to the normal functioning of the nervous system, to normal psychological function and to the reduction of tiredness and fatigue. Anyone who studies a lot, sleeps little and often eats irregularly uses up their reserves quickly – precisely in the phase in which resilience is required.
Melatonin helps you come to rest after a packed study day. Melatonin contributes to the reduction of the time taken to fall asleep when 1 mg is consumed close to bedtime. This is important because what has been learned is consolidated above all during sleep – pulling all-nighters often costs you more performance in the end than it brings.
Hericium erinaceus (Lions Mane) is an edible and medicinal mushroom traditionally used in East Asia and popular in study and focus routines. We make statements exclusively in terms of traditional use and the standardised content of polysaccharides and beta-glucan, not about medicinal effects.
Metabolism building blocks: magnesium as part of a metabolism set contributes to a normal energy-yielding metabolism and to the reduction of tiredness and fatigue – helpful when energy sags in the middle of the exam phase and coffee alone is no longer enough.
A word on the topic of caffeine, which in student everyday life is often the first choice: in moderation there is nothing against a coffee, but drunk late in the day caffeine sabotages precisely the sleep you need to consolidate the study material. Anyone who relies on energy drinks in the afternoon and evening quickly goes round in a circle of overtiredness and stimulation. It is more sensible to stabilise the baseline supply through nutrients and sleep and to use caffeine consciously and early. This way you avoid the typical exam vicious circle and keep your concentration more constant over the weeks, instead of forcing it in the short term.
A further point that many students underestimate is the regularity of nutrient intake. In the hot exam phase, eating often becomes a secondary matter, meals are skipped or consist of whatever is quick right now. It is precisely then that the baseline supply of minerals such as magnesium tips over particularly easily. A fixed daily routine – such as taking it with breakfast – ensures that the basis is right, even when the rest of the day sinks into study chaos. Continuity beats any short-term high dose here, because nutrients such as magnesium only unfold their benefit through regular intake over several weeks.
Our product recommendations
Magnesium Complex
400 mg of elemental magnesium from four bioactive sources per daily dose. Magnesium contributes to the normal functioning of the nervous system, to normal psychological function and to the reduction of tiredness and fatigue – a solid, affordable basis for the strenuous study time. The obvious starting point for any student stack, which you can expand later if needed.
Lions Mane (Hericium erinaceus)
Highly concentrated extract with 1300 mg per dose, standardised to 30 % polysaccharides and 5 % beta-glucan, manufactured in Germany. The lion's mane mushroom is traditionally used in East Asia and is a popular plant-based companion in focus and study routines. Standardisation to beta-glucan is the quality feature that makes a genuine extract here. 180 capsules last for the whole study phase.
Melatonin Sleep Complex
1 mg of melatonin per tablet, combined with magnesium. Melatonin contributes to the reduction of the time taken to fall asleep – especially valuable when the mind is still running at full speed after studying and thoughts are racing. Good sleep is half the exam preparation, because what has been learned is consolidated at night. The large pack of 365 tablets accompanies you affordably through several semesters.
Metabolism & Energy Complete Package
A coordinated set covering liver, thyroid and magnesium for everyone who likes it uncomplicated. The magnesium content contributes to a normal energy-yielding metabolism and to the reduction of tiredness and fatigue. For students who want to support their energy supply with a ready-made package instead of laboriously assembling individual tins themselves.
View Metabolism & Energy Package
Fundamentals first
The best supplement does not beat a good study strategy. For exam phases the following applies: structured study blocks with real breaks, sufficient sleep instead of all-nighters, regular meals with real food instead of only snacks, plenty of water and exercise as a balance to all the sitting. Anyone who studies through the night for nights on end and hardly sleeps loses precisely the cognitive performance and memory capacity they need in the exam – a bad deal.
Plan your supplements like your study material: magnesium and medicinal mushrooms work through continuous intake over weeks, melatonin, by contrast, acutely in the evening. Therefore do not start only on the exam day, but build up the routine in good time before the hot phase. With combination products, take care not to take magnesium twice. If you take medication or have health questions, please discuss new food supplements with your doctor beforehand.
Also remember that your brain, like a muscle, needs breaks and variety. Short movement units between study blocks, fresh air and a window without a screen before going to bed often improve memory capacity more than another hour of studying. Nutrition also counts: regular, balanced meals keep blood sugar more stable than a diet of snacks and sweets, which leads to energy rollercoasters. Anyone who uses these simple levers creates a resilient basis on which targeted supplements can make their modest but sensible contribution – especially on a tight student budget, every well-invested euro counts.
Finally, a word on dealing with exam stress itself. A certain amount of tension is normal and even helpful, but permanent pressure wears equally on concentration and sleep. Small routines such as a fixed end to studying, a short walk or conscious breathing breaks help the nervous system to wind down. Magnesium contributes to normal psychological function and can accompany these efforts, but does not replace them. Anyone who learns to take their recovery just as seriously as the material goes into the exam more rested and more assured in the end – and that is exactly what every building block in this guide pays into.
Frequently Asked Questions (FAQ)
Which product is suitable as an entry point for students?
The Magnesium Complex is an obvious and affordable starting point: magnesium contributes to normal psychological function and to the reduction of tiredness and fatigue – both very relevant in study phases. Further building blocks such as Lions Mane or melatonin can be added later in a targeted way.
Does melatonin help after long study evenings?
Melatonin with 1 mg contributes to the reduction of the time taken to fall asleep. Since what has been learned is consolidated above all during sleep, a good start to falling asleep after intensive study days is particularly valuable – it pays directly into your memory performance.
Why is Lions Mane popular in study routines?
The medicinal mushroom Hericium erinaceus has long been used traditionally in East Asia and is therefore a frequent plant-based companion in focus routines. We describe it exclusively in terms of this tradition and its standardised beta-glucan content, not about medicinal effects.
Can I take the products throughout the whole exam phase?
Magnesium and medicinal mushrooms are designed for continuous intake over weeks, melatonin for acute intake in the evening before sleep. Build up the routine in good time and stick to the dosage recommendation on the respective pack.
Do supplements replace studying and sleeping?
No. They can support individual areas but replace neither a good study strategy nor sufficient sleep. These fundamentals remain decisive for your exam success – supplements at most round them off.
Health notice: This guide is for general information purposes only and does not replace individual medical or pharmaceutical advice. Food supplements are not a substitute for a balanced, varied diet and a healthy lifestyle. If you have health concerns, are pregnant or breastfeeding, or are taking medication, please consult a doctor or pharmacist. How our guides are created →
Sources
- German Nutrition Society (DGE) — Referenzwerte für die Nährstoffzufuhr, 2024
- EFSA – European Food Safety Authority — Health Claims Register, 2023
- EU Regulation 432/2012 (Health Claims List) — Zugelassene gesundheitsbezogene Angaben, 2012








