Can you guess their secret?

This is the teaser video from John Frieda for their new Full Repair Range (post to come soon with the details). Can you guess their secret?! I can definitely empathise with all of these girls! I straighten or curl my hair every day (except for at the weekends when I'm just mooching around the house) and my hair is probably crying out for a break- but I just can't stop! Am really looking forward to giving my hair some TLC with John Frieda's new products.