- Get incredible body, volume and added texture, while protecting against sun damage. RUSK® Thickr® Thickening Myst contains hydrolyzed wheat protein and conditioning agents to moisturize and repair the condition of fine, limp or lazy hair. It gives incredible body, volume and added texture, while protecting against damaging rays of the sun. Hydrolyzed wheat protein moisturizes hair and helps repair damaged ends. Spray liberally through towel-dried hair. Style with blow-dryer as desired.