Darrell Redleaf Darrell Redleaf is a stylist for film, TV and fashion magazines who has worked with top stars including Joss Stone, Scarlett Johannson, Gwyneth Paltrow and Cameron Diaz.

Q:No matter what I do to my hair, it's flat and frizzy an hour later. I can't blame the weather every day! What am I'm doing wrong?

A: It could be a combination of things. First, you might be over-conditioning your hair. That is a problem I've seen many times. This makes hair feel waxy and it becomes flat because it's coated with too much product. Use a product stripper to remove all the build up. Second, you might be over-styling. Try using a leave-in conditioner only on your ends before you blow it dry. Third, it might be the length of your hair pulling your style down. You might be due for a trim.