Science Hub

Strong hair and nails aren't built from keratin alone — they're built from cysteine. Here's the beauty chemistry most people never learn about.

Cysteine is not a single-source nutrient. It can reach your cells through at least five distinct routes — dietary, internal synthesis, targeted supplementation, cellular recycling, and metabolic pairing — and each one operates through a genuinely different mechanism.

The skin-brightening supplement aisle is full of noise. Here's what the controlled clinical data actually says about cysteine, glutathione, and skin tone.

Magnesium is the quiet hero of your body – involved in over 300 enzymatic reactions, it looks after your peace of mind, heart rhythm, muscle strength, sleep and hormones. But not all forms of magnesium work the same way. Choosing the right one isn't a matter of fashion, it's about precise tailoring to your day, the time of day, and your goal.

The cholesterol in your blood has zero connection to the cholesterol in your brain. Zero. And most people have no idea, which means most people have no idea why their brain is slowing down.

The brain is a paradox. It constitutes roughly 2% of body weight but consumes approximately 20% of total energy - almost entirely as glucose under normal conditions. 

Imagine a water filtration plant that processes 180 litres of blood per day, recovering vital nutrients while excreting waste with remarkable precision. That is the kidney. Like any complex industrial system, it degrades with age — and unlike the heart or liver, it has very limited regenerative capacity. By the time most people reach their 70s, kidney function has typically declined by 30–50% from its youthful peak, even in the absence of overt disease.

The heart is the body's most demanding organ. It beats over 100,000 times per day, never resting, never pausing - and to do so, it consumes more energy per gram of tissue than any other organ in the human body. 

What if a single molecule could convince your cells they had just completed an intense endurance workout — without you moving a single muscle? That is precisely the ambition behind SLU-PP-332, a first-in-class synthetic pan-agonist of the Estrogen-Related Receptors (ERRα, ERRβ, and ERRγ). 

Have you ever wondered why some people seem to have an endless supply of energy, even though they enjoy delicious meals and don't count calories at all? Meanwhile, you rigorously restrict your food intake, diligently practise intermittent fasting, and relentlessly punish yourself with exercise – yet your body simply refuses to change.

It doesn't matter how many calories you consume – the deeper we delve into biology, the more significant this statement becomes. Your metabolism is ultimately determined by how efficiently your mitochondria (the energy centers of your cells) synthesize energy (ATP) from the food you take in. 

Brain energy is the primary determinant of your ability to resist depressive thoughts and thoughts patterns as well as to activate the neural networks associated with optimism. Your cells are not your thoughts. Your mental health starts at the mitochondrial level.