"The Garnier Fructis Sleek & Shine Anti-Frizz Serum ($7) is my absolute fave. You can apply on wet or dry hair. It's very lightweight so it will not weigh your hair down. It gives so much shine, helps keep your hair straight, and is a great moisturising product for your hair. It has amazing oils like moroccan and argon. It works wonders on hair extensions, too." — Nafisah Carter, celebrity hairstylist