Peer-reviewed research translated into clear, accessible language. Understanding the biology behind healthy hair.
Biotin is the most popular ingredient in hair supplements worldwide. But beyond the marketing claims, what does it actually do at the molecular level — and does supplementation make a difference?
Iron deficiency is the most common nutritional deficiency worldwide — and one of the most underdiagnosed causes of hair loss. Here's what the current evidence tells us about the connection.
The gut microbiome influences far more than digestion. A growing body of research suggests that the trillions of microorganisms in your intestines may play a meaningful role in hair follicle health and cycling.