I tried TRESemme Keratin Smooth Heat Defense Spray as part of my daily blow drying routine. After showering, I sprayed my hair and brushed the product through. The mist was fine and dispersed lightly and evenly. It smelled a bit floral but dissipated quickly, without interfering with my regular perfume. I blew my hair out as usual. My hair was nice and straight, no frizz or fly aways. It was left feeling healthy and moisturized, not try and damaged. I would definitely use TRESemme Keratin Smooth Heat Defense Spray regularly as part of my routine. It took little to no additional time in my already rushed morning.