Word of the Day: Keratin
noun | kehr·uh·tin
A tough, insoluble protein substance that is the chief structural constituent of hair, nails, horns, and hooves.
A naturally-occurring protein in your hair, keratin works to keep your strands smooth, strong, and healthy. But as time passes, the level in your hair will start to diminish, which is often the reason why hair can get dull and dry. That’s why you’ve probably seen keratin-rich hair products on the beauty shelves for a quite a while now — they’re great for replenishing these lost proteins in your hair, promoting a smoother and healthier texture.
The oleo-keratin power combo, a combination of oil and protein that helps make hair softer and more manageable, is what lends the L'Oreal Advanced Haircare Smooth Intense Frizz Taming Shampoo its smoothing power.
You can also find keratin in these hair care products — check out our picks below!