Add Yahoo as a preferred source to see more of our stories on Google. So, why exactly do you have dandruff? In short, it’s caused by fungal overgrowth on the scalp. Dr. Blaire Murphy-Rose, a ...

All products featured on Glamour are independently selected by Glamour editors. However, when you buy something through our retail links, Condé Nast may earn an affiliate commission. I learned the ...

Color treatments with peroxide and ammonia permanently alter hair structure, making fine hair especially prone to breakage Avoid hair products containing sulfates, parabens, sodium chloride, and ...