While each product featured is independently selected by our editors, we may include paid promotion. If you buy something through our links, we may earn commission. Read more about our Product Review ...

Starre Vartan is an environmental and science journalist. She holds an MFA degree from Columbia University and Geology and English degrees from Syracuse University. This hair mask is as simple as you ...

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. Scrolling through ...

Hair serum is a styling product that coats the surface of your hair. It’s made with a base of silicone, a rubber-like substance that sits on top of your strands. There are different types of hair ...

Apple cider vinegar is a wellness-trend main character—and for good reason. It’s most commonly known for supporting gut health, but using apple cider vinegar for hair also has some serious perks. With ...

Every product on this page was chosen by a Harper's BAZAAR editor. We may earn commission on some of the items you choose to buy. How to get thicker hair is a common question that many beauty ...