HEAT styling is considered damaging to the hair. This goes without saying really. HOWEVER, recent research by ghd at their Research & Development centre in Cambridge has shown that using a hair-dryer at the right distance, correct temperature and precise step by step method can actually cause less damage than letting hair air dry.
When hair is wet, the hair fibre will swell and become weaker. Hence prolonged exposure to water will mean more chance of damage to the hair since it is in this weakened state. Minimizing the time you allow it to be wet is a good idea, but you need to dry it in the right way so as not to cause more unnecessary damage.
When hair comes into contact with water it swells and the longer the swelling goes for, the more pressure it puts on the delicate proteins that keep hair intact, which can lead to further damage.
With this, ghd scientist and chief technology officer Dr Tim Moore, has come up with this formula to ensure the healthiest of hair is achieved when blow drying: