Functional drinks are booming – but what's really behind the colorful cans? We've taken a close look at three of these drinks and examined their ingredients for you. From green tea extract to saffron, from GABA to ashwagandha – here you'll learn what each ingredient does and why this combination is no coincidence.
SHARP – Clarity & Concentration – Green Tea · Ginseng · Mango · Mint
• Green tea extract (L-theanine & caffeine) – Arguably nature's smartest combination: L-theanine and caffeine work synergistically. While caffeine increases alertness, L-theanine reduces nervousness and promotes a relaxed yet focused state – often referred to as "alpha wave activation." Ideal for productive work periods without jitter.
• Panax ginseng extract – True ginseng (Panax) is considered one of the most extensively researched adaptogens. It has been shown to improve reaction time and working memory, reduce mental fatigue, and support cognitive performance – especially during stressful periods.
• Mango leaf extract (Mangifera indica) – Less well-known, but exciting: Mango leaf extract contains mangiferin, a powerful antioxidant with neuroprotective effects. Studies show positive effects on attention, reaction time, and cognitive stress – a real insider tip among nootropics.
• Natural mint oil – not just for taste: Peppermint aroma activates the nervous system via olfactory receptors and can increase alertness and concentration. Studies confirm that the scent of peppermint has a positive effect on cognitive stamina.
• Vitamin B12 – essential for the synthesis of neurotransmitters and the myelination of nerve fibers. B12 deficiency leads to concentration problems and fatigue – targeted supplementation can make a measurable difference.
SHARP's conclusion – clarity – is especially beneficial for people who dislike caffeinated drinks but don't want to risk a crash. The combination of green tea, ginseng, and B12 provides sustained energy without jitters.
VIBE – Relaxation & Balance – Lavender · GABA · Valerian · Chamomile
• Magnesium citrate – Magnesium is involved in over 300 enzymatic processes and plays a central role in regulating the nervous system. Magnesium citrate is one of the most bioavailable forms and helps relax muscles, reduce stress, and improve sleep quality. A true cornerstone of vibe.
• GABA (gamma-aminobutyric acid) – GABA is the most important inhibitory neurotransmitter in the brain – it dampens excessive neuronal activity and has a calming effect. When taken orally, GABA can reduce stress hormones and lead to a state of relaxed serenity without being sedating.
• Lavender distillate – Lavender is one of the best-documented herbal anxiolytics. Linalool, the main active ingredient, interacts directly with GABA receptors in the brain. Clinical studies (e.g., with Silexan) show a significant reduction in anxiety symptoms – comparable to mild benzodiazepines, but without the risk of dependence.
• Valerian root extract – Valerian increases GABA levels in the brain and prolongs sleep duration. In combination with chamomile, a synergistic effect is created, making it a natural sleep aid of the first choice – well-tolerated and non-addictive.
• Chamomile extract – Apigenin, the active ingredient in chamomile, binds to benzodiazepine receptors and has a calming effect on the central nervous system. Chamomile reduces anxiety, relaxes muscles, and promotes restful sleep.
• Lemon balm extract – Lemon balm inhibits the enzyme GABA transaminase, which is responsible for breaking down GABA – thus, more GABA remains available in the system. Additionally, it has a mood-enhancing effect and reduces cognitive excitability.
Conclusion on VIBE: One of the most potent calming drinks on the market in terms of ingredients. The combination of GABA, lavender, valerian, and lemon balm intervenes in the stress response on several levels simultaneously – and magnesium citrate provides the physiological basis for this.
RELAX – Deep Cognition & Vitality – Ashwagandha · Ginkgo · Saffron · Maca
• Ashwagandha root extract (double dosage) – Notably, ashwagandha appears twice here – once as part of the concentrate mixture and once additionally as a separate extract. This suggests a deliberately higher dosage. Ashwagandha reduces cortisol, improves memory and cognitive function, and is one of the most studied adaptogens worldwide.
• Ginkgo extract – Ginkgo improves microcirculation in the brain, increases the oxygen supply to nerve cells, and has neuroprotective effects. It is particularly well-known for improving concentration, reaction time, and mental stamina – a classic among nootropics.
• Saffr'Activ (saffron extract) – Saffron is more than just a spice – standardized saffron extracts have demonstrated antidepressant effects comparable to low-dose SSRIs in clinical studies. Saffr'Activ is a patented form of saffron that supports mood, emotional balance, and cognitive function. A premium ingredient with a genuine scientific backing.
• Maca extract – The Andean root is known for its adaptogenic properties: Maca increases energy and stamina, regulates hormone balance, and can positively influence mood and libido. Particularly interesting in combination with ashwagandha for systemic vitality.
• Tulsi extract (holy basil) – Tulsi is a key adaptogen in Ayurvedic medicine. It reduces cortisol, has anti-inflammatory properties, supports the immune system, and improves cognitive flexibility. As part of the Koncentra formula, it synergistically complements Ashwagandha.
• Inactivated probiotics (L. rhamnosus & L. acidophilus) – The gut-brain axis is now well understood: A healthy gut microbiome directly affects mood, stress resistance, and cognitive function. Inactivated probiotics provide the cell wall components (postbiotics) that train the immune system and strengthen the intestinal barrier – without active bacteria, which would be problematic in drinks.
• Inulin and gum arabic – prebiotics that serve as food for gut bacteria and improve the absorption of other active ingredients. They support microbiome health and can help to reduce blood sugar fluctuations.
• Vitamin B6 – Essential for the synthesis of serotonin, dopamine, and GABA. B6 is the cofactor for almost all neurotransmitter synthesis and thus significantly increases the efficiency of other cognitive substances.
RELAX Conclusion: The most comprehensive formula of the three drinks – with the broadest spectrum of effects. Ashwagandha, ginkgo, saffron, and maca work simultaneously on the hormonal, neuro, and microbiome levels. For people seeking profound cognitive and emotional support.
Our overall verdict
What all three drinks have in common: They consistently rely on plant-based active ingredients with a scientific foundation, avoid aspartame and artificial sweeteners, and combine ingredients that complement each other – no marketing bingo, but well-thought-out formulations.
• SHARP: For focus and a clear mind – especially suitable in the morning or before concentrated work phases.
• VIBE – Relaxation without drowsiness – ideal in the evening, during stressful periods or as a counterbalance to stimulating drinks.
• RELAX: For deep cognitive support and systemic vitality – the most complex and comprehensive of the three drinks.
At Neuroblends, we follow the same approach: only effective ingredients make it in. We're excited to introduce products like Sharp to our community – and will continue to be transparent about what's really in your supplements.