TRESemmé Extra Hold Volumizing Hair Styling Mousse TRESemme Extra Hold Mousse is a professional-quality clean-feel mousse that volumizes and holds style. This hair mousse is powered by Pro Lock Tech for 24H frizz control and style memory. Our styling mousse contains holding polymers to expertly iron out stray hairs for controlled flexible styles not flat and always beautifully full. Step 1 Start by prepping your hair with your favorite TRESemme shampoo and conditioner. Step 2 Towel-dry hair shake the can and dispense 2-3 egg-sized dollops of TRESemme Extra Hold Mousse. Step 3 Apply the Extra Hold hair mousse to hair directly with a brush or with your hands then brush from roots to ends to cover thoroughly. Step 4 Blow dry your hair and finish with TRESemme Hair Spray.