Setting the hair and preparing for a photo-shoot is important. You need to place a buffer on the hair from the heat of thermo styling tools. Especially if the hair is blonde. Blonde hair is lightened to the highest levels and will often break if the heat of a styling tool is set too high. Temperature is very important when curling the hair and straightening the hair. I like to use a light weight hair spray for buffering the hair when styling and also light weight enough for working with the hair.
Try using the Kenra Design Spray 9 for your styling aids. It is a very light weight product and also is good for working with the hair and styling it in place. But not strong enough for a firm hold.
Tames frizz & flyaways, Lightweight, brush-able formula, Provides enhanced definition for moveable styles. 
One side sprayed with the styling spray the other with nothing. As you can see you get a smooth non flyaway finish.
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