[noun] Biotin, or vitamin B8, is a coenzyme (a molecule that helps enzymes perform their actions) that participates in the metabolism of fatty acids, carbohydrates and amino acids, meaning it helps convert food into energy the body can utilise. As the human body cannot produce its own biotin, it is important to ensure a sufficient daily intake through external means. It is naturally present in egg yolks, legumes, nuts and seeds or can be taken in food supplements.

Related category: Nutri-cosmetics.