Biotin, also known as vitamin B7, is a water-soluble vitamin found in foods like eggs, milk, and bananas. It plays a key role in overall health by supporting cell growth, carbohydrate metabolism, and fatty acid synthesis. Biotin is essential for the metabolism of fats, carbohydrates, and amino acids, and it influences cell growth while helping to maintain healthy blood sugar levels.

Commonly supplemented for conditions such as hair loss, brittle nails, and nerve damage, biotin is also thought to reduce inflammation, improve cognitive function, and help balance cholesterol levels by increasing HDL (good) cholesterol and decreasing LDL (bad) cholesterol. Its wide range of benefits makes biotin a valuable nutrient for skin, hair, and metabolic health.